The space theme and color palette took me all the way back to 2010 when I first played a certain flash game known as REDDER.
I'm glad @0x746564 mentioned the walking sound... otherwise I would not have noticed it! Speaking of sound, I noticed you have some SFX variations for scrap collection, but apparently not for shooting and other common sounds. Slightly randomizing the volume and pitch of the sound effects would be a subtle but nice improvement.
You made it obvious that this is a game intended to be fun to speedrun... and it is! The vertical movement feels great. Unfortunately, the horizontal movements falls flat in comparison because of the speed difference. Did you consider using the same vertical dashes for moving left and right?
I'm curious to know more about your thought process in the development of this game. For instance, I noticed that enemies only shoot projectiles vertically. I immediately thought about rotating these enemies 90 degrees so they could shoot horizontally (or even diagonally), but I realized that might not be compatible with your established movement and shooting mechanics. I think that framing these design challenges and talking about how you approach them would make a very interesting and educational video. If you can make it happen, I'm sure you would help a lot of young aspiring designers make better game jam games!
Very good game :smile: let me know when level 5 is available!