Cheat coes (also called debug codes or backdoors) are codes that can be entered into a video game to change the game's behavior, alter characters' looks and abilities, skip levels, or access other hidden features. A prime example of this is the Konami Code (↑ ↑ ↓ ↓ ← → ← → B A B Start), which when entered usually gives the player a large number of lives or powerups.