Graphics are great, loved the look and vibe of the arcade machine. Great choice of colour scheme for the main game, really nailed the aesthetic. Music complements the visuals nicely too.
Well done for getting some procedural generation done in the timeframe too.
For improvements, I'd mainly say just build upon what you have; add some more mechanics, variety in ships controls, something like that. Maybe a predicted position/orbit path - would help me stop crashing into planets ;)
Excellent and very polished submission. Congratulations!