The music and visual seemed pretty polished and the controls felt really tight. The first boss felt really well tuned but even after so many tries I could only get the second one down to around 10% at best. I think the projectiles are just a tad too fast and different boss states come after one another too quickly that it feels unfair. Besides that, the game is very enjoyable and the exchange theme is done really well though and not being forced to be near the weapon to pick it up at the cost of uptime is a well designed mini tradeoff.