Abnormal Pokémon

The Abnormal Error Trap occurs in the Second Generation of Pokémon games while a player attempts to trade a glitch Pokémon from the First Generation to the Second Generation of games. The name of the Pokémon varies on which glitch you attempt to trade. For example, if you attempted to trade Missingno. to either one of the Second Generation games, the game says "You're friend's Slowpoke, is abnormal!" Followed by the text previously stated the game will immediately end the trade and the text will say "Too bad, the trade was canceled!"