Game: The Heart of an Action Hero
This is Jack. He's the protagonist. Inside of him beats the heart of an Action Hero! That's you! The heart, that is, not the Action Hero. -- Press the space bar to beat Jack's heart to help him find the treasure and escape the jungle! -- Don't beat too fast or too slow! -- Beat faster to help him outrun danger or beat slower to help him sneak past threats!
Backwards: One or more aspects of the game works the opposite as would normally be expected: maybe the controller is reversed (left is right, right is left), maybe you win lives every time you die, maybe it scrolls to the left and your character moonwalks.