Nice concept and cool art. I did run in to some issues where for example i attacked a skeleton and could not move anymore but all by all very nice. And since you offered a gamepad control i used that.
some small QOL things
1) Maybe make the first land/platform where you start and or all lands available in both channels. I fell trough the first land because i was testing out keys. You could for example make the last platform before a land channel dependent and make the land pieces save havens
2) Make the first cutscene skippable, its not super long but after seeing it once i would like to continue trying the game
3) I used the controller but when i died i had use the mouse to restart
But a solid game for the jam