Arrow keys to move, and find the button by doing parkour, falling off the edge, and yes SWIMMING THROUGH LAVA, go crazy. P.S you do not have to find the button, you could just explore if you want. Oh and yes in the cloud lvl, if you fall off the clouds, you have to click the green flag and restart :( unless you find a way to get back up.
oh yes and thanks to pennharlowe for the Smooth Walk Cycle,> https://scratch.mit.edu/projects/45497