Hey there, thanks for playing!
Could you elaborate on the screen changing part? I know there is a specific spot that's bugging, but did it happen more than once for you?
4 years ago (+1)
On the first part before the second checkpoint, where there are two blue kirbies with legs and a spike in the middle. If you go through the secret tunnel and try to go back. The screen just doesn't change. Also purple door doesn't open, instead red one does.
4 years ago(+1)
Oh yeah, that's the bad spot :(. I have already fixed it.
Anyway, thanks again for playing and for the detailed comment!