Good controls! The rounded shape of the ground looks nice! I liked how the ground's colour change from time to time!
- Add audio -- That would make the game feel alive
- Possibly, replace the enemies that are on the HUD with colours that have a number on top of them -- That would be good because the enemies that are on the HUD aren't the ones that get spawned; that made the game confusing
- Destroy bullets when they touch the wall -- Bullet takes a long time to get destroyed when it collides with the wall isn't so good
- Add a tutorial -- I didn't know what to do at first
- Maybe, make the enemies interact with each other - for example, the red enemies destroy the blues once, but they don't interact with red enemies
- When I change the colour, change the colour of the bullets too