That was fun :)
The main issue here is that the game is not playable with a controller, this would have been a really perfect input system, because moving with WASD, while switching colors with arrows is already a bit counter intuitive (as those two mappings are both movement related imo), PLUS having to fire was really hard to get used to.
It would have been, I think, better to have one key to switch, and one key to fire. This way, you can just switch with your key, and it would have been okay if you had to click twice to switch a color (because in that case it would do a red/green/blue cycle), because you can still do it fairly easy and you don't have to remember the colors mapping, just click and select the color once the visual info comes on screen, and then shoot. It would also have put the emphasis on the "instable" color selection ;)
Enemies movement was great, I'm not sure about their behaviour, I believe it's pretty much random, but it looked good and it did not feel unfair, despite the area being tight, so that's a very nice point !
About the game feel, I think the shoot could be a bit more energetic. More explosions on contact, higher fire rate, charging an attack to release a huge shot or a laser, etc. I know those are not always easy or quick to implement, but it would have add a lot to the game :)
This doesn't need much to be a great game, so you should consider enhance it a little bit after the jam ! The art style is also cute though the overall game is a bit too light or lacks some contrast.
Great job :D
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Thx for the detailed review :) that idea is actually really cool and I might implement it after the jam. I also thought about making it juicier but honestly, I ran out f time xD The enemies check for collisions but for the most part don't chase the player, they are meant to be rather goofy and a little stupid :)
Thank you!