The graphics are pretty good, I love that power stealing animation ! The music is good too, too bad that you run out of time to finished it. It lacks of things to do and a nice level for explores differents possibilities granted by stealing enemies power when killing them, that's a cool concept. Also it really needs a game over + restart function, and I don't like really much the jump (maybe change gravity or add a short time where you can still jump if you are quitting the ground can help, but maybe it's just a matter of personal preferences here).
And a last thing: Imo, the purpose of ludum dare, no, of game jams, no of the whole gamedev is TO RUN OUT OF TIME TO FINISH.
Good luck for your futures projects :).

I like the power stealing mechanics. Pixel art and animation are really nice too. I wish there was a button that would restart the game, or the auto restart when power runs out. Otherwise the game has potential!

The base game mechanic is really nice, and the visual style of the game is also really good too! Great work on the animations, specially the power stealing. Background's also really well done too, and the soundtrack is really fitting (though, it felt a bit repetitive after playing a lot).

The controls felt like they need a bit of polish, but overall, I believe you're in the right way! Keep making and Good Luck! ;D