Good:
- The level design is fantastic. Really nicely interconnected, with some very cleverly-designed jumping puzzles.
- The animations are really nice! Subtle, but I like how squishy the blob is.
- The earth merging mechanic is very neat. I like how you can only merge downwards, which forces you to really consider the space.
Bad:
- I had to stop playing, because the double jump stopped working. I got it, got out of the area where you find it, went down to the path you need a double jump to get through, and could no longer double jump. Dying and respawning didn't change that.
- The one-hit kill isn't really my thing, but that's just personal taste. More objectively, dying is very abrupt. Some kind of animation, sound effect, or screen transition would make that less jarring.
- The character moves to fast, to my mind. Admittedly, clearing a really difficult section was very satisfying, but I think at least the opening of the game should be easier. Don't destroy the player until they're invested...
Overall, I really enjoyed this. The level design was great, and a few tweaks to the movement would make this even better.