Firstly, nice pixel art and music :D
I downloaded the Easy mode version, because I am a noob :) It was fun to play, and reminded me a lot of celeste. Some general issues I had were that the character moved way too quickly, and also that once I reached the end of the first level (?)I couldn't go any further I can't tell if this is intentional or not but because the game didn't end I assume it's not. The character also disappeared, and I was unable to get them back.
I am glad that you tried it out, but about the bug that the player gets stuck at the end of stage 1, I can't recreate the bug, I just collect the memory crystal and the game moves on to a new stage after a "you win" animation?
Update: I think your issue is the same as the one that was described here by @madeofyogurts that players can fall off the world at the very right edge of one of the rooms in stage 1, if so, then as I replied there, it will be fixed in a few hours from when I make this post.
Thanks for playing!
