|“||Squeak! This is GREAT! Very funny! The Earth has been severely damaged... Very cool, brother! Squeak! Let's retire all of the Reploids together!"||„|
|~ Dark Dizzy to Zero|
Three Years prior to Megaman X5, Sigma created Dark Dizzy to help him take over the world. But some time after, Dark Dizzy escaped and went into hiding. Sigma didn't think of him as a serious fighter so he decided not to search for him, eventually forgeting about him.
The Maverick Hunters eventually encountered Dark Dizzy in a planetarium somewhere in the northwest Sudan while they are looking for a Fuel Tank for the Space Shuttle. Zero confronted the powerful Maverick think he was sent there to cause destruction. Dark Dizzy proved to be a powerful Maverick, but in the end, Zero managed to defeat the Dark Maverick.