The UI for this game needs work...
There's multiple styles, different pixel resolutions.
The game itself is bland and grindy.
Mechanics such as when upgrading should pause the game.
No feeling of progression besides upgrading, like leveling up, having challenges/events (not quests) but you want people to spend 100 hours in this game?
Nothing happens, besides 1 random plane spawning multiple balls.
Could be better.