The newest game from the Regular Show Games category on Friv Games Today features none other than Muscle Man, and it is entitled Regular Show Hellish Nightmare. It is a very interesting and fun adventure game where you are about to enter the dreams of Muscle Man. He is in his growing phase, so he sleeps very much. The only problems is that when he sleeps he has hellish nightmares, which you will have to help him get out of and wake up. Ready for an adventure? Let us teach you how to play the game, which you will be able to do if you continue reading this description until the end. You will find yourself in a dungeon, together with a demon baby, which you have the duty to protect. You will use the arrow keys to walk around with Muscle Man, and you will be able to pick up the baby by pressing the space bar when you are next to him. If you hold him and press the space bar you will throw him. Protect him, and make sure he is not touched by all kinds of beasts in your nightmare, because if you lose three lives, you lose the game. In every level you will see a different part of the dungeon, and there will be all kinds of beasts, but we are sure that you will manage!