Entertaining!
I loved the pixelated submerge into the game, and the voices make it feel much cooler.
As for the gameplay itself, I loved it. The firepower upgrade made it more fun, and I love the bosses.
The idea of the game itself is very creative, I love it.
The music, also somehow sounds pixelly, it's very upbeat and keeps you at a good pace.
The flow of the levels, which is often overlooked, was great. Everything came at the perfect speed for you to shoot if you were quick.
It deserves a ten, for sure.