Nice job with this! I ran into some audio issues with the web version, so I switched to the downloadable version (as a fellow love2d dev, I feel your pain with respect to web exports).
I ran into the same issue as another player where I'd get oneshot by some enemies (it looked like they're meant to deal 1 damage and reposition you, but sometimes they'd reposition you too close to the enemy, which resulted in me getting hit multiple times in a row). Some checkpoints would have helped a lot as well.
It's a little disorienting to get teleported away when you get hit. I think adding invincibility frames to the player when they get hit would be a good way to handle taking damage and would also remove the need to teleport the player away when they get hit.
All that said, this was a solid metroid clone! The art fits really well and the environments look great on the low resolution canvas. I'm also always impressed when people manage to put together metroidvania-style levels for a jam. Good work!