press 'r' for debug mode, this will be removed in later versions. WASD or arrow keys to move. 'S' or ⬇ to perform a gravity flip. (when on ground only, to prevent flying.)
alpha V1.0: scrolling platformer base. alpha V1.1 added gravity flip. alpha V1.2 added checkpoints alpha V1.3 added upside-down graphic alpha V1.4 added boost panels
