Really cool! The sound effects and visuals were cute... And the mechanic where you took enemies' abilities was interesting, too, and it worked in well with the game! I'd be interested in how it could developed into a bigger game! I also like how the big blue enemy didn't take knockback from your attack, just to get across the idea that it's heavy.
A couple times, I'd have to make a jump downward with no assurance that there was ground beneath me. This was especially problematic, because as far as I could tell, that had to happen to get to one of the puzzle pieces in the first level. I looked everywhere but just couldn't find it, til I took a leap of faith! Having to restart the level from dying made that more problematic... Also, I feel like a key press for the shooting controls would be more natural, as I want to aim with the mouse. I got used to it though, and I thought it was a great decision to have the two types of the attack. Also, some unique set pieces around would have probably helped me get my bearings on my location, especially in the first level.
All in all, it's a well-working game with an endearing aesthetic and an interesting mechanic that's just begging to be expanded in a bigger game! Which is fantastic for such a short jam!