good stuff, the art is very nice and the music compliments it. I liked how the music changes when you die, then plays a triumphant bit when you return to life.
The jumping felt a bit clunky sometimes, specifically when double jumping if I wasn't already pressing the move key before double jumping or if I didn't time the left/right key properly then it wouldn't read the input and I would double jump straight up without strafing anywhere.
I only went a few levels in so I'm not sure if there were more mechanics introduced later on but if everything was shown in the first 5 levels then adding some extra features would really go towards adding replayability (perhaps different types of enemies with different movement patterns).
Overall was enjoyable and fit the theme, good job!
Viewing post in Death is nothing but a Door jam comments
Thanks for the feedback. I have improved the jumping a bit, but it definitely still needs some work. You're definitely right about having some more enemies/variety. I think considering the jam time I should have made some variants on the slimes to have some variety (like hue shift them and then have a faster one)