The phases are really good and well passed, I like the way that it builds itself and teach us how to play without a tutorial, we make our own path and figure it out by ourselves without getting lost (almost). The controls are okay, you get used to them, but I still mix z (gun) and x (jump) a lot.
In the part where you have that secret door in the top, with the inverted cross, that phase is either too difficult or have a mechanic mistake that makes it unbeatable, in the poison floor part, when you jump on the platform, is almost impossible to avoid the upper block. Maybe I'm just terrible at it idk.
Overall really good, the art and the color, the music and sound effects are beautiful, and the mechanics are really cool.
Also ps make a save option cause sometimes the game crashes and i have to see the GODDAMN CUTSCENE all over again.
UwU