Definitions
1.NounA game mode where the player character is invulnerable to damage, typically activated by entering a cheat code.
2.NounA mode of play in (mostly) roguelike games, allowing the player to create objects on demand, to be resurrected in the case of death, etc.
3.NounA temporary state of extreme skill (in a sport, video game, etc.)."She went god mode and effortlessly defeated her opponents, leaving them in awe of her superhuman skills."