A bullet heaven! I think the standout thing here is the enemy designs. They're simple (normal guy, big guy, fast guy) but they force you to react and stay paying attention.
It's really fun, I did a few runs and my favourite build was stacking bullet split even at the cost of damage. That being said, rounds feel like the drag on a *bit* too long and a few pickups like the odd healing gem or temporary buff would have gone a long way. But hey-ho, it's a jam, time limits and all.
I'll be honest, I never really got around to understanding the multiplier system. I *think* each slot changes how effective the boost is by a certain amount? You guys should clarify that on the game page, I think it'll really help your ratings.
Overall- Fun game! Great work.