Very fun and substantial game, it basically feels more like a full game than a gamejam entry! My favorite part is the enemy variety, how easy it is to tell them apart, and how learning how to deal with each enemy type is a mini-puzzle in and of itself. I'm also a big fan of the art style and palette, the graphics for the various rooms and biomes are very pretty and easy to read. On the other hand, one area that could use some improvement is the sound design, the main theme is very repetitive and the sound effects sound a bit too bassy for this style of game.
The main jump mechanic is a lot of fun when it comes to fighting, it's always satisfying when you can pogo off a bunch of enemies in a row, and feels very fitting for the setting and characters! However, when it comes to traversal and backtracking, it sometimes feels like it slows down the pacing of the game a lot due to having to charge the jump. Traveling through rooms without enemies, or rooms with a lot of vertical movement, can feel a bit tedious in particular. I think having some kind of a visual indicator of the full charge, like the character blinking, might help a lot, because that way at least players won't spend more time charging than necessary.
The "stealth" mechanic with enemy vision is a cool twist on the Metroidvania genre, but it can also feel a bit punishing at times. In some rooms, it feels like the first thing you do after entering is sit there and wait for enemies to turn around or move to a certain spot. I think this is mainly an issue with the knife throwers, who seem particularly fast and deadly with their attacks compared to everyone else.
Sadly, due to the game being so big (and the map being a bit hard to read), I ended up "a bit" lost and unfortunately didn't quite manage to get to the end. I had a lot of fun exploring though, and I did manage to beat two bosses and find a lot of powerups!