Thanks , I will fix level 5 (although this hasn't happened to me yet) tomorrow and ill add some new features in the next week. The endless level is completely random so there may be a jump that's impossible .
If you hold s on the endless mode , it shows you the debug menu . This tells you how far the next block is and so on
I believe level 5. The one where you jump a gap then jump onto a platform and then another platform. If u jump on the first platform then fall it glitches up and u have to restart. Just beat the game and had a pretty good time though :)
 "Idle Raiders"){kind=icon}
 "PixelPanic!"){kind=icon}
Refresh and you're going to be happy! :D