So, [[WesternAnimation/AdventureTime Finn and Jake]] accidentally release an [[SealedEvilInACan Omnidimensional conquerer from his prison.]] Normally, this would be no problem; but, before they can deal with their new enemy, he runs away to another dimension. Finn and Jake prepare to chase after him in pursuit...

So, [[WesternAnimation/RegularShow Mordecai and Rigby]] bought a [[TheAllegedCar really crappy car.]] It turns out that the car belongs to some guy from another dimension, who steals the car back, along with the park's golf cart. Mordecai and Rigby don't want to get fired, so they prepare to chase after him...

''[[http://www.fanfiction.net/s/6509895/1/Regular_Time Regular Time]]'' is a crossover story written by Tropers/LosZombies. It features characters from both ''WesternAnimation/AdventureTime'' and ''WesternAnimation/RegularShow''.

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!! This fan fic provides examples of:
* AffablyEvil: Ernie, the Omnidimensional conquerer, is a surprisingly nice guy [[spoiler:SuperpoweredEvilSide when he doesn't get ticked off.]]
* [[spoiler:CoolCar: The 1980 Firebird, when powered by Ernie the Conquistador's gauntlet, is capable of inter-dimensional travel.]]
* EveryoneMeetsEveryone: Mordecai and Rigby meet Finn and Jake in Chapter 3.
* HyperspaceIsAScaryPlace: It certainly seems that way. Ernie doesn't seem to have that much trouble when he travels through it, though.
* InsistentTerminology: So far, Ernie is always referred to as a 'Conquistador'; even in the narration.
* NiceJobBreakingItHero: Finn and Jake accidentally releasing Ernie. Finn even [[LampshadeHanging hangs a lampshade]] by being embarassed that this isn't the first time he's done something like this.
* OurMonstersAreWeird: In true AT fashion, one of the first creatures that Mordecai and Rigby encounter in Ooo is described as a 'Knife-eyed tree-shark'.
* PowerFist: Ernie wields one. It acts as his main method of travel between dimensions, and had a variety of other uses.
* SealedEvilInACan: Ernie was trapped inside of his [[PowerFist gauntlet of power]], until Finn and Jake [[NiceJobBreakingItHero accidentally released him.]]
* ShoutOut: The second chapter's beginning is a reference to WesternAnimation/RegularShow's pilot.
* TheAllegedCar: The 1980 Firedbird [[spoiler:when not powered by Ernie's gauntlet]]. It runs 'good'.
* ThreateningShark: Upon first arriving in Ooo, Mordecai and Rigby are attacked by a [[OurMonstersAreWeird Knife-Eyed Tree-Shark]].