Version 0.5.4 is out!  Here are the list of new additions:

MULTIPLAYER VERSUS MODE
Face your friends on a local multiplayer mode and get fit together in 4 different game modes:

• Race to the Gates: Similar to stage 1-3, race against a friend, the first to reach the gates wins!
• Token Frenzy: Collect as many tokens as possible, whoever has more by the end of the timer wins!
• Last One Standing: Try to stay on top of a treadmill that constantly speeds up. The last to fall wins!
• Slingshot: Operate giant slingshots by doing sit ups, whoever destroys the most enemies wins!

NOW AVAILABLE ON MacOS!
*mind that porting to MacOS caused some minor graphic bugs, but overall the player experience is preserved! =)