diff --git a/apollo-frontend/src/app/app-routing.module.ts b/apollo-frontend/src/app/app-routing.module.ts
index 4368d18..467821b 100644
--- a/apollo-frontend/src/app/app-routing.module.ts
+++ b/apollo-frontend/src/app/app-routing.module.ts
@@ -1,11 +1,12 @@
 import { NgModule } from '@angular/core';
 import { RouterModule, Routes } from '@angular/router';
 import { DashboardComponent } from './dashboard/dashboard.component';
+import { MinigameBiotriviaComponent } from './minigame-biotrivia/minigame-biotrivia.component';
 import { MinigameConveyorRecyclingComponent } from './minigame-conveyor-recycling/minigame-conveyor-recycling.component';
 
 const routes: Routes = [
     { path: 'minigames/conveyor-belt', component: MinigameConveyorRecyclingComponent, data: { animation: 'conveyor-belt-mg' } },
-    { path: 'minigames/biotrivia', component: MinigameConveyorRecyclingComponent, data: { animation: 'biotrinia-mg' } },
+    { path: 'minigames/biotrivia', component: MinigameBiotriviaComponent, data: { animation: 'biotrinia-mg' } },
     { path: '', component: DashboardComponent, data: { animation: 'home' } },
 ];
 
diff --git a/apollo-frontend/src/app/card/card.component.html b/apollo-frontend/src/app/card/card.component.html
index 836f3fc..61f618d 100644
--- a/apollo-frontend/src/app/card/card.component.html
+++ b/apollo-frontend/src/app/card/card.component.html
@@ -1,4 +1,4 @@
-<div class="container" #container>
+<div class="container dialog" #container>
     <div class="tags">
         <div class="contents" *ngFor="let type of card.types" >
             <div [class]="[type, 'icon']" *ngIf="type !== 'normal'"></div>
diff --git a/apollo-frontend/src/app/card/card.component.scss b/apollo-frontend/src/app/card/card.component.scss
index ae6f026..24a1130 100644
--- a/apollo-frontend/src/app/card/card.component.scss
+++ b/apollo-frontend/src/app/card/card.component.scss
@@ -82,11 +82,6 @@
     border-radius: 1em;
     padding: 1em;
 
-    box-shadow: #0004 3px 3px 5px;
-
-    background-color: #f8f8f855;
-    backdrop-filter: blur(10px);
-
     button {
         margin: 0 auto;
         display: block;
diff --git a/apollo-frontend/src/app/dashboard-cards/dashboard-cards.component.scss b/apollo-frontend/src/app/dashboard-cards/dashboard-cards.component.scss
index 70e9982..a22bb4b 100644
--- a/apollo-frontend/src/app/dashboard-cards/dashboard-cards.component.scss
+++ b/apollo-frontend/src/app/dashboard-cards/dashboard-cards.component.scss
@@ -10,8 +10,9 @@
     flex-wrap: wrap;
     width: 100%;
     gap: 2em;
-    padding: 1em 0;
+    padding: 1em;
     box-sizing: border-box;
+    justify-content: center;
 }
 .card {
     scroll-snap-align: start;
diff --git a/apollo-frontend/src/app/dashboard-minigames/dashboard-minigames.component.scss b/apollo-frontend/src/app/dashboard-minigames/dashboard-minigames.component.scss
index 7d0d528..93ddfc2 100644
--- a/apollo-frontend/src/app/dashboard-minigames/dashboard-minigames.component.scss
+++ b/apollo-frontend/src/app/dashboard-minigames/dashboard-minigames.component.scss
@@ -9,7 +9,8 @@
     flex-wrap: wrap;
     width: 100%;
     gap: 2em;
-    padding: 1em 0;
+    justify-content: center;
+    padding: 1em;
     scroll-snap-type: y mandatory;
     box-sizing: border-box;
 }
diff --git a/apollo-frontend/src/app/db.service.ts b/apollo-frontend/src/app/db.service.ts
index 9aecd75..8c26783 100644
--- a/apollo-frontend/src/app/db.service.ts
+++ b/apollo-frontend/src/app/db.service.ts
@@ -16,11 +16,22 @@ export interface Card {
     name: string;
     types: Array<"endangered" | "normal">;
 }
+export interface MultipleChoiseAnswer {
+    type: 'multiple-choise';
+    choises: string[];
+    correctChoise: string;
+}
+export interface Question {
+    category: string;
+    question: string;
+    photoUrlsAbove?: string[];
+    answer: MultipleChoiseAnswer;
+}
+
 export interface Saved<T> {
     id: string;
     el: T;
 }
-
 @Injectable({
     providedIn: 'root'
 })
@@ -298,11 +309,111 @@ export class DbService {
             },
         },
     ];
+    private mock_questions: Saved<Question>[] = [
+        {
+            id: '0',
+            el: {
+                category: 'animals',
+                photoUrlsAbove: [ '/assets/images/questions/slon.jpg' ],
+                question: 'Защо бройката на слоновете в Африка намалява?',
+                answer: {
+                    type: 'multiple-choise',
+                    choises: [
+                        'Убиван е от други животни',
+                        'Липса на храна',
+                        'Убивани са от бракониери',
+                        'Замърсяване на въздуха'
+                    ],
+                    correctChoise: 'Убивани са от бракониери',
+                }
+            }
+        },
+        {
+            id: '1',
+            el: {
+                category: 'animals',
+                photoUrlsAbove: [ '/assets/images/questions/carski orel.jpg' ],
+                question: 'Каква е главната причина за намаляването на бройките Царски орли?',
+                answer: {
+                    type: 'multiple-choise',
+                    choises: [
+                        'Бракониери',
+                        'Замърсяване',
+                        'Отсичане на горите',
+                        'Електрически стълбове'
+                    ],
+                    correctChoise: 'Електрически стълбове',
+                }
+            }
+        },
+        {
+            id: '2',
+            el: {
+                category: 'animals',
+                photoUrlsAbove: [ '/assets/images/questions/carski orel.jpg' ],
+                question: 'Каква е главната причина за намаляването на бройките Царски орли?',
+                answer: {
+                    type: 'multiple-choise',
+                    choises: [
+                        'Бракониери',
+                        'Замърсяване',
+                        'Отсичане на горите',
+                        'Електрически стълбове'
+                    ],
+                    correctChoise: 'Електрически стълбове',
+                }
+            }
+        },
+        {
+            id: '3',
+            el: {
+                category: 'animals',
+                photoUrlsAbove: [ '/assets/images/questions/zlatna zhaba.png' ],
+                question: 'Каква е причината за изчезването на Златната жаба?',
+                answer: {
+                    type: 'multiple-choise',
+                    choises: [
+                        'Глобално затопляне',
+                        'Замърсяване на реките',
+                        'Отсичане на горите',
+                        'Недостиг на храна'
+                    ],
+                    correctChoise: 'Глобално затопляне',
+                }
+            }
+        },
+        {
+            id: '4',
+            el: {
+                category: 'animals',
+                photoUrlsAbove: [ '/assets/images/questions/shtigga.png' ],
+                question: 'Каква е причината за намаляването на бройките на Черният щъркел?',
+                answer: {
+                    type: 'multiple-choise',
+                    choises: [
+                        'Замърсяването на блатата и езерата',
+                        'Недостиг на храна',
+                        'Глобално затопляне',
+                        'Естествени врагове',
+                    ],
+                    correctChoise: 'Замърсяването на блатата и езерата',
+                }
+            }
+        },
+    ];
 
-    private getRandomEl<T>(array: T[]): T {
-        const index = Math.floor(Math.random() * array.length);
-
-        return array[index];
+    private getRandomEls<T>(array: T[], n: number): T[] {
+        const result: T[] = new Array(n);
+        let len = array.length;
+        const taken = new Array(len);
+        if (n > len)
+            throw new RangeError("getRandom: more elements taken than available");
+        while (n--) {
+            const x = Math.floor(Math.random() * len);
+            result[n] = array[x in taken ? taken[x] : x];
+            taken[x] = --len in taken ? taken[len] : len;
+        }
+        return result;
     }
 
     getAllMinigames(): Saved<Minigame>[] {
@@ -325,5 +436,11 @@ export class DbService {
         else return this.mock_card_types[index].el;
     }
 
+    getRandomQuestions(n: number, category: string): Question[] {
+        return this.getRandomEls(this.mock_questions
+            .filter(v => v.el.category === category)
+            .map(v => v.el), n);
+    }
+
     constructor() { }
 }
diff --git a/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.html b/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.html
index 7fe0c07..ec04886 100644
--- a/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.html
+++ b/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.html
@@ -1 +1,15 @@
-<p>minigame-biotrivia works!</p>
+<div class="container">
+    <div class="start-dialog dialog" *ngIf="stage === 'starting' || stage === 'starting-ongoing'" #startDialog>
+        <h4>Пробвай познанията си за екология</h4>
+        <p>
+            В тази викторина ще има 5 въпроса, които ще тестват вашите познания по екология.
+            Накрая, в зависимост от познатите отговори, ще получите по-рядка карта или
+            по-обикновена карта</p>
+        <button igxButton igxRipple (click)="startGame()">Продължи към играта</button>
+        <div class="separator"></div>
+        <button igxButton igxRipple routerLink="" >Върни се в началния екран</button>
+    </div>
+    <div class="question dialog" *ngIf="stage === 'ongoing' || stage === 'starting-ongoing'" #ongoingDialog>
+        <h4></h4>
+    </div>
+</div>
\ No newline at end of file
diff --git a/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.scss b/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.scss
index e69de29..06ccf6d 100644
--- a/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.scss
+++ b/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.scss
@@ -0,0 +1,34 @@
+.container {
+    height: 100vh;
+    width: 100vw;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    overflow: hidden;
+
+    .start-dialog {
+        width: 600px;
+        max-width: 100%;
+    }
+    .dialog {
+        padding: 2em;
+        box-sizing: border-box;
+        border-radius: .5em;
+        button {
+            margin: 0 auto;
+            display: block;
+        }
+        h4 {
+            text-align: center;
+            margin: 0 2em;
+            margin-top: 0;
+        }
+        .separator {
+            height: .5em;
+            width: 100%;
+        }
+        p {
+            text-align: center;
+        }
+    }
+}
\ No newline at end of file
diff --git a/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.ts b/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.ts
index 8cdd6da..aba8e9d 100644
--- a/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.ts
+++ b/apollo-frontend/src/app/minigame-biotrivia/minigame-biotrivia.component.ts
@@ -1,15 +1,78 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, ElementRef, NgZone, OnInit, ViewChild, ViewChildren } from '@angular/core';
+import { Observable, Subject } from 'rxjs';
+
 
 @Component({
-  selector: 'app-minigame-biotrivia',
-  templateUrl: './minigame-biotrivia.component.html',
-  styleUrls: ['./minigame-biotrivia.component.scss']
+    selector: 'app-minigame-biotrivia',
+    templateUrl: './minigame-biotrivia.component.html',
+    styleUrls: ['./minigame-biotrivia.component.scss']
 })
 export class MinigameBiotriviaComponent implements OnInit {
+    @ViewChildren('startDialog') startingElementRef;
+    @ViewChildren('ongoingDialog') ongoingElementRef;
 
-  constructor() { }
+    guessedQuestions = 0;
+    stage: 'starting' | 'starting-ongoing' | 'ongoing' | 'ended' = 'starting';
 
-  ngOnInit(): void {
-  }
+    constructor(
+        private zone: NgZone,
+    ) { }
 
+    ngOnInit(): void {
+    }
+
+    animateElements(el1: HTMLElement, el2: HTMLElement): Observable<void> {
+        const a = new Subject<void>();
+        el1.style.position = 'absolute';
+        el1.animate([
+            {
+                transform: 'translateX(0)',
+                opacity: 1,
+            },
+            {
+                transform: 'translateX(-100vh)',
+                opacity: 0,
+            },
+        ], {
+            duration: 200,
+            easing: 'ease-in',
+        }).onfinish = () => {
+            el1.style.opacity = '0';
+        };
+        el2.animate([
+            {
+                transform: 'translateX(100vh)',
+                opacity: 0,
+            },
+            {
+                transform: 'translateX(0)',
+                opacity: 1,
+            },
+        ], {
+            duration: 200,
+            easing: 'ease-out',
+        }).onfinish = () => {
+            a.next();
+        };
+        return a;
+    }
+
+    startGame(): void {
+        if (this.stage !== 'starting') return;
+        console.log(this.ongoingElementRef);
+
+        const startingEl = this.startingElementRef.first.nativeElement as HTMLElement;
+        startingEl.style.position = 'absolute';
+
+        this.stage = 'starting-ongoing';
+
+        setTimeout(() => {
+            const ongoingEl = this.ongoingElementRef.first.nativeElement as HTMLElement;
+
+            // tslint:disable-next-line: deprecation
+            this.animateElements(startingEl, ongoingEl).subscribe(() => {
+                this.stage = 'ongoing';
+            });
+        }, 10);
+    }
 }
diff --git a/apollo-frontend/src/app/minigame-card/minigame-card.component.html b/apollo-frontend/src/app/minigame-card/minigame-card.component.html
index 7cb2dde..bb89c04 100644
--- a/apollo-frontend/src/app/minigame-card/minigame-card.component.html
+++ b/apollo-frontend/src/app/minigame-card/minigame-card.component.html
@@ -1,14 +1,19 @@
-<div class="container" #container>
+<div class="container dialog" #container>
     <div class="main">
         <div class="contents" #frontSide *ngIf="!flipped">
-            <h6>{{minigame.name}}</h6>
+            <h6>{{minigame.name}} <span *ngIf="minigame.comingSoon">(не е готова)</span></h6>
         </div>
-        <p *ngIf="minigameUserdata.played">
-            Вече сте играли тази игра и {{hasMedal() ? 'имате' : 'нямате'}} {{getMedalType()}} медал
-        </p>
-        <p *ngIf="!minigameUserdata.played">
-            Все още не сте играли тази игра
+        <div class="contents" *ngIf="!minigame.comingSoon">
+            <p *ngIf="minigameUserdata.played">
+                Вече сте играли тази игра и {{hasMedal() ? 'имате' : 'нямате'}} {{getMedalType()}} медал
+            </p>
+            <p *ngIf="!minigameUserdata.played">
+                Все още не сте играли тази игра
+            </p>
+        </div>
+        <p *ngIf="minigame.comingSoon">
+            Тази игра все още се разработва
         </p>
     </div>
-    <button igxButton igxRipple (click)="play()">Играй {{minigameUserdata.played ? 'отново' : ''}}</button>
+    <button [disabled]="minigame.comingSoon" igxButton igxRipple (click)="play()">Играй {{minigameUserdata.played ? 'отново' : ''}}</button>
 </div>
\ No newline at end of file
diff --git a/apollo-frontend/src/app/minigame-card/minigame-card.component.scss b/apollo-frontend/src/app/minigame-card/minigame-card.component.scss
index ce74c4f..ec33c35 100644
--- a/apollo-frontend/src/app/minigame-card/minigame-card.component.scss
+++ b/apollo-frontend/src/app/minigame-card/minigame-card.component.scss
@@ -49,11 +49,6 @@
     border-radius: 1em;
     padding: 1em;
 
-    box-shadow: #0004 3px 3px 5px;
-
-    background-color: #f8f8f855;
-    backdrop-filter: blur(10px);
-
     button {
         margin: 0 auto;
         display: block;
diff --git a/apollo-frontend/src/assets/images/questions/carski orel.jpg b/apollo-frontend/src/assets/images/questions/carski orel.jpg
new file mode 100644
index 0000000..077d1fc
Binary files /dev/null and b/apollo-frontend/src/assets/images/questions/carski orel.jpg differ
diff --git a/apollo-frontend/src/assets/images/questions/shtigga b/apollo-frontend/src/assets/images/questions/shtigga
new file mode 100644
index 0000000..ed3b4c8
Binary files /dev/null and b/apollo-frontend/src/assets/images/questions/shtigga differ
diff --git a/apollo-frontend/src/assets/images/questions/slon.jpg b/apollo-frontend/src/assets/images/questions/slon.jpg
new file mode 100644
index 0000000..3662495
Binary files /dev/null and b/apollo-frontend/src/assets/images/questions/slon.jpg differ
diff --git a/apollo-frontend/src/assets/images/questions/zlatna zhaba.png b/apollo-frontend/src/assets/images/questions/zlatna zhaba.png
new file mode 100644
index 0000000..8102e33
Binary files /dev/null and b/apollo-frontend/src/assets/images/questions/zlatna zhaba.png differ
diff --git a/apollo-frontend/src/styles.scss b/apollo-frontend/src/styles.scss
index 40c01d0..21cde94 100644
--- a/apollo-frontend/src/styles.scss
+++ b/apollo-frontend/src/styles.scss
@@ -6,6 +6,10 @@ html {
     width: 100%;
     height: 100%;
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+    box-sizing: border-box;
+}
+
+html {
     background-image: url('/assets/images/Forest BG.png');
     background-size: cover
 }
@@ -30,3 +34,11 @@ $my-color-palette: igx-palette($primary: $company-color,
 .contents {
     display: contents;
 }
+* {
+    box-sizing: border-box;
+}
+.dialog {
+    background-color: #f8f8f855;
+    backdrop-filter: blur(10px);
+    box-shadow: #0004 3px 3px 5px;
+}
\ No newline at end of file