#### Functional > In order to run and hot reload app either on emulator or device, follow the [instructions](https://docs.flutter.dev/get-started/test-drive?tab=androidstudio#run-the-app) ###### Was the app committed within the required time period? ###### Does the app run without crashes? ###### Does the ball collide properly, i.e. each time it touches walls or tiles, its angle changes according to the rule: it leaves with the same angle it came? ###### Does the player's tile move in the same direction as phone is tilted? ###### Do tiles disappear when the ball bounces off them? ###### When the player's tile reaches the end of the display, it should not be going out of display's dimensions, is that the case? ###### Does the game end when all tiles disappear? ###### Does the game end when ball hits bottom part of display?