Really fun game! Reminds me a lot of Geometry Wars. Your colors and minimalist graphics were both on theme and just awesome! Movement was also great. Feels very polished, especially for a game jam.
Only thing I would recommend is making the power-ups have a halo glow or pulse or something to draw my eye more towards them. Maybe even just having all power-ups as pure white since everything else is a neon color? Not sure of the best solution, but it took me a while to notice them. I actually enjoyed the game even before seeing the power-ups. When I knew what to look for, the game jumped from fun to one of my top favorite games in this jam yet! Overall, amazing job!
Would appreciate it if you checked out my game too!