I like the idea. I feel like it could be very fun with some adjustments. The game is overall a bit easy, i beat it first try without coming close to half health. Some of the upgrades that improve other items can show up even if you dont have that item (like the increased laser damage upgrade even though i never got the laser, maybe have these only become available if you have the corresponding weapon.) The idea of having to shoot coins with a magnet to collect them is cool, but the problem is that the gun will sometimes decide to shoot coins instead of enemies which can be annoying. The design of the UI is quite nice looking and the enemy sprites look good. Good job with the game overall theres some potential here for sure