You are expected to have played the original project before playing this one. I did check that the Extra challenge is possible. Changelog: V1.1: Volume control and level design change; Added a pit between the purple and magenta keys, to force intended path. V1.2 Made a section soon after purple key easier, high score reset. V1.2a Added proper thumbnail
The creators of the 2 projects directly above the remix tree from this one. They can be seen below:
