esc - exit
pmb - restart on game over
lmb - go
This is quite something. Super simple, of course; lacking audio, sure; yet the controls are very responsive and the challenge itself could be stretched to, in my opinion, a full length project!
Tight controls, an ever expanding world and maybe a few different enemy types to chase and target the player on the way. Think of N, when it comes to the enemies. Yeah, that would work!
I really like the backgroung graphic, the main sprites are in a different style and suffer from a lot of aliasing which is a shame.
As a proof of concept, very solid. Keep at it!