A, D to move, 'space' to jump. Super refined parkour physics engine. Took many days, but takes 1 click to play so enjoy :) Also you can remix and change the background (0,0,0 is wall/floor/ceiling) to experiment or even use it in your very own parkour game.
Edge stepping is sorta fixed, however it may 'wall climb' when hitting a wall at y change at 0 or -1, idk why tho. Now there is "roll physics", it allows the ball to roll down slopes. Note: if you jump near a ledge you get pushed away. And also jumping gets lower, hopefully fix these in the future.