The game has a great retro feel to hit. The spawns are a bit too random though, and there were quite a few times something spawned right next to me in the direction I was moving, which resulted in a game-over since I didn't have anytime to react.
I did setup a minimum value but I guess I set it still too close to the player. Also, I did want the game to have this cool retro feel since the limitation was 4 colors and I'm not much of an artist.