A nice little metroidvania. Definitely a bit rough around the edges, maybe literally since the character controlled a little weirdly around corners, but was overall fun to play through.
Absolutely loved the gloopy-heart graphic for the player health, and the game over animation for it is awesome as well. Being one gloop away from death feels all the more tense when I can see that slime encroaching upon my very being. (I’ll admit to loudly going “Gah!” when I proceeded to take a hit whilst one gloop away from death.)
As another commenter mentions, the ceiling-grapple mechanic in particular isn’t super well communicated at the start. Thinking back, I think you did an good job with putting that lava gap that quite obviously requires some kind of ceiling-grapple to bypass in order to force the player to realize they can do that, but an extra nudge such as a sign in the background saying something like “hold [up key]” would be nice. Additionally, a sound effect when the player grapples/ungrapples to the ceiling would be very good for communicating to the player that whatever they’re doing is indeed doing something.
I prior mentioned the player character controlled a bit weirdly around corners. While the player’s jump height seemed to be around 2 tiles high, clipping into a corner would up it to a little over 3, which felt weird. Unsure as to how intentional this was.
It would’ve been nice if the game leaned more into the clone-looping mechanic (especially since it’s what ties it to the jam’s theme). It felt a bit more like an afterthought than a main thing, and really all its uses were tantamount to just spawning a clone on top of a button. Would’ve been cool to have a couple bits with multiple buttons that had to be pressed in sequence, and such.
Anyway, despite my criticisms, I had some good fun playing through your game. Good job on it!