Bad Kiss
Mordecai, Rigby, Margaret and Eileen leave the cinema after watching a movie and head back to the house to have 'Morde-shakes'. When they arrive, Mordecai forgets his wallet in Margaret's car and goes back in to get it. Margaret helps him look and they stop and kiss. Margaret pulls him away, saying he has bad breath and Mordecai runs inside. Mordecai tells Rigby what happened and says he won't be able to face her again, but Rigby tells him he still has the time machine he bought for $15. Mordecai wants to go back 15 minutes ago to stop himself from kissing Margaret, but it doesn't work. They then go back to when they're watching the movie and Rigby tries to get past Mordecai to eat some mints, but it doesn't work. They continue going back in time until they get to himself in the morning and bring him back to the present, who doesn't Mordecai when he says they kiss Margaret. Past Mordecai escapes with the time machine and M&R go after him with the second time machine Rigby bought by going back in time before Past Mordecai took the time machine. They go after Mordecai's past self through different times until they capture him at 11:55 when Mordecai kisses Margaret. Rigby takes Past Mordecai to the present and present M&R destroy the time machine, leaving present Mordecai in his past. Margaret comes in to help Mordecai and Margaret gets prepared to kiss Mordecai, who finds his wallet before she kisses him. They go inside and Rigby says "You know I came with the name Morde-shakes" and Mordecai replies with "Yeah, yeah."
Characters
Main
Mordecai
Rigby
Margaret
Past Mordecai
Minor
Eileen
Muscle Man(mentioned)
Stag-Man(past cameo from Camping Can Be Cool)
Pops(past cameo from Grave Sights)
Zombies(past cameo from Grave Sights)
Future Mordecai and Future Rigby(past cameo from Mordecai and the Rigbys)
Mordecai
Rigby
Margaret
Past Mordecai
Minor
Eileen
Muscle Man(mentioned)
Stag-Man(past cameo from Camping Can Be Cool)
Pops(past cameo from Grave Sights)
Zombies(past cameo from Grave Sights)
Future Mordecai and Future Rigby(past cameo from Mordecai and the Rigbys)
M&R trying to use the time machine Margaret and Mordecai about to kiss M&R going after past Mordecai