The game on mobile has a few bugs.
some of the buttons In the store don't work, like the buy button in the renders or even the back button.
And if you try and select one camera angle but hit the another angle while the camera's transitioning, it'll cause a weird lockup in the special scenes.
One QOL I'd recommend is either lowering the buy requirements on items, or adding some kind of power up or multiplier that helps increase your score faster.