I think there are only 8 level. idk what happens after the 8th level either, I've never beaten it.
Made this project around 4 years ago and only now it's published. I stole platformer physics (and coin animation i think) from someone, that's not mine. What's mine are those AMAZING (not really) graphics, sounds and levels. Btw, if you passed the 8th level, you are mad man, I gave up after trying around 50 times.