The game is very great! I enjoyed playing it, and would like to give some feedback on the game design from my perspective.

The pixelart is not aligned to a grid, but that's just my preference. I also found myself doing a lot of suicide runs to clear the area of enemies as they don't come back (respawning with 1 heart didn't help with that), so something could be improved. Also, some plants that hurt you were not explained or used long enough, and I was always concerned one day I'd have only one heart and not physically be able to beat the game as I would not be able to go past.
The jump mechanic feels like some default code, but it works and is nice enough to use. Also, grabbing onto objects isn't the best; it shouldn't just 'stick you' onto them (but again, fine for a simple game).
Semisolid platforms have collision when jumping onto them from the side which is slightly irritating. The method for stopping the player going backwards could do with a fade-out, currently it's just like the tunnel stops.
Buttons the player can push should look different from buttons the player needs to get a crate for, and the statue's hitbox is one pixel off the floor.
But overall, it was a very nice game! I enjoyed playing it, so thanks!