Thanks for playing.
This is the first game where I focussed on trying to make a full soundtrack rather than just 1 or 2 bits of music. I got lucky in the theme for the jam because I game up with the game idea in preparation for the jam and started creating assets before the start of the jam. A lot of that time was spent on the music.
As for the shortcut, the door to no where wasn't really supposed to be accessible, but by the time I realised I'd forgotten to close it off, I didn't have the time left to fix it.
I know the controls need refining to make the platforming better, so I wouldn't suggest it's just you ...