In the pilot, Mikey arrives in Tokyo and gets shown all the sights by his new friends in a quirky Good-Times Montage before being brought to a press conference announcing his addition to LilyMu. Ozu gets angry that the cast didn't show him the "real" Japan and instead just all the touristy crap, so he takes Mikey out himself...to do all of the exact same things in another montage. Even funnier this all supposedly takes place over the course of five minutes before the press conference.
Mikey gets a huge zit in one episode and a reporter who is literally just J.Jonah Jameson gets a photo of him. Mikey manages to placate him by giving dirt on all of his costars, most notably Guano. When he finally comes clean at a press conference over his zit, he starts it by admitting he has been unfair to his costars and then shows the press another embarassing picture of Guano.
Mikey loses a giant Gonard balloon during the taping of an episode of Lilymu. Throughout the episode we see the citizens running from it in fear and treating it like it's Godzilla attacking Tokyo.
Citizen:(as the balloon looms over him) "WHY, GONARD, WHY?!"
Mikey temporarily moves in with Mistuki and Lily. While giving him the tour, Mikey finds Mitsuki's Stalker Shrine towards him and she says that it was just there when they moved in. Then he finds Lily's wall serving as a monument of her hate towards him and she has no problem taking ownership.
After a one armed thief steals a top secret Invisibility Cloak and Mikey gets blamed, he vows to catch the one armed man that set him up. However when confronted he reveals that he doesn't have one arm, the way he explains in the most matter of fact way that the cloak just covered his arm up and made him look like he was missing one.
Ozu takes a vacation, which Guano points out is extremely rare and something he's only done once before in the past couple of decades. Que a flashback of Ozu going on vacation for about 30 seconds. When he actually takes his second vacation with Yes Man he spends the entirity of it getting into wacky hijinks at the airport.
Gonard is the source for most of the wackiest jokes due to being a Cloud Cuckoo Lander and to Sean Schemmel's brilliant comedic acting, though YMMV, as it's usually random.
He enjoys his disguise as a Swedish panda zookeeper a bit too much in "The Bracemaster".
"Arugula 4, we have lift-off!"
In "Like Ozu Like Son", the crew is fleeing from a flock of angry birds. When they manage to run into the apartment and they shut the door behind them, Gonard realizes he "forgot his hat". Of course, he goes back into the flock, gets pulverized, rushes back inside the apartment, shuts the door, and then remembers he doesn't wear one. Guano bonks him on the head.
In "The Clip Show", he thinks the gang is going to Finland for their beach vacation, and of course, he never gets it when Lily constantly corrects him. Later, when they're kept late in the studio by Ozu, he laments, "I don't wanna make a clip show! I wanna' go to FINLAND and play SKI BALL and play in the SAND and WIN A TOY SHARK and name it Mister PEACHES!" all in one breath.
"Splashomon" has pretty much the best comedic timing out of any episode.
Characters make jabs at voice-acting in "A Christmas Mikey".
The spirits of Christmas having a change of heart after hearing Ozu's story and teaming up with him to destroy Christmas.
After the Ghost of Christmas Future changes Ozu's mind about the season, the other two spirits realize how great Christmas is and decide to dedicate themselves to helping people on Christmas. Which was their original job. The Future Ghost responds by saying they're fired.
"Reality Bites", the The Real LilyMu reality-show segment.
The American and Buttstonian edited versions of LilyMu in "Uh Oh Guano".
TV!Gonard:(in Schwarzenegger accent) I AM PREGNANT!
Gonard:(beat) I hope it's a boy!
The entirety of the Buttstonian subplot in that episode, but especially this line from the national anthem:
"We are a real country!"
The newscast about Lily's new romance with Mikey, in the form of a Werepuff, in "Night of the Werepuff".
"Script Assassin": Guano quits, and the crew is faced with a replacement writer and director, who is famous for killing off characters in past shows he worked on, and they try to prevent him from killing off Gonard's character at the same time that Ozu is duped into convincing Guano to return. How do they do this? By stalling the shoot as long as possible, and having a dang good time doing it! It's also one of the rare times they are all cooperating with each other 100%!
"Uh, that's my food?" "And it is delicious!" OhSean...