Very strong concept, but some playability issues. It's a bit tedious to have to run to a far corner to retry a tricky jump, particularly in stage "1", after already doing a long ladder.
The grid paper lines have a cool visual, but have a bit of readability issues. A bit bolder with the lines would have been better imo.
I do think there's a really fun game in here though, but trying to balance running back with your ghost, after spamming kick and hope you hit yourself doesn't seem right. Maybe I was doing it wrong though.