MMX Hill Dash is back! More physics based racing than you can shake a stick at. - New vehicles and tracks. ðŸš— - New environments. â›°ï¸- New surface types. Yes! ðŸ’ªOften said to be the connoisseurs choice, the MMX racing series has enthralled an exclusive club of over 100 million players. This game is still in beta. This means there are many more levels, vehicles and features to come. But it also means bugs which may attempt to upset and frustrate you. If you do find any please accept our apologies and report them via the help menu.