Help your Robux build up his muscles to become the boss of all the rocking chairs! Lift dumbbells, press expanders, hit a punching bags, knock out new pets, defeat bosses, be reborn, complete missions! A huge selection of skins, pets, jewelry and various activities! Pump, move to new levels and become the best of all!

Desktop: WASD — Movement LMB — Pumping Space — Jump RMB and mouse movement — Camera rotation Smartphone: Movement — The joystick on the left side of the screen Camera rotation — Finger movements on the right side of the screen Click on the screen — Pumping