This game is one of the best ive seen so far, good music, assets, and even cutscenes. A upgrade system, working backgrounds, and a well set out level. This game is amazing. In sprint 3 I would say adding some kind of checkpoint in longer levels would be great, as I accidentally upgraded my gun first and it was very difficult to get past level 2 as if I died once my progress would be reset. Theres some stray pixels in certain animations (look around the top), this can probably be fixed by reimporting the sprite sheet. Adding a settings menu and having to exit the level select menu would be nice. Plus I want a cool martian sound track. 8/10 game, I am sure it will be one of the best in the Jam. I think a boss fight would be cool