Writing this for Lizabet since she didn't know how to word the controls feedback properly, and I both watched her play this game and I also gave it a try! She ended up rebinding the grapple to Right Trigger as it was more convenient for her. Rebindings weren't too clear since they were the default Godot naming (Instead of Circle it just says Joypad Button 1, as an example).
Also we noticed that for the console buttons on the game's main page the Super Jump Button (Circle) and Grapple Button (Square) were actually switched around in-game (Circle was Grapple, Square was Super Jump).
UPDATE: Just beat it with controller (moose_2 in leaderboards), no issues found. Probably just user error/misunderstanding.
As for my playthrough I played via keyboard and didn't have any real issues with the controls. I managed to beat it (My score is named as "moose"). I thought the game was a great entry and it was a really cool twist on the theme with evolution, I didn't see that much from the games I tried in the jam.
- Exttsector z