BMO

Beemo (or BMO) is Finn and Jake's living video game system and roommate. It makes its appearance in the title scene of the Theme Song of every episode of Adventure Time, just before Finn and Jake pound their fists together. Beemo is the only one who can press the button under its D-pad to send a target to its main-brain-game-frame.

Episode appearances
Beemo made a cameo appearance in the episode "Evicted!", being played by Marceline while Finn and Jake are going house-hunting. It is also seen in "Business Time" when Finn and Jake are playing Adventure Masters on it. Also, in "Business Time", Finn and Jake are seen playing an Abraham Lincoln game (a reference to the Animated Short).It is later seen in the episode "My Two Favorite People". In "The Witches Garden", Finn was playing a game while discussing with Jake about how he got his magical powers. Beemo also is seen in "What is Life?" when Jake throws a garbage bag of butter on Finn, and in the episode "Donny" where one of the controls is smashed in half. Beemo claims to not have emotions, but Donny angers it by breaking a controller and throwing it at Beemo.

In "Rainy Day Daydream", it shows a bored Finn and Jake a new game, "Conversation Parade". Beemo appears again in "Slow Love" where it acts like a rebellious kid, refusing to turn down its music when Jake tells it. Beemo is then pummeled and battered when Snorlock starts dancing with lady snails while the tree house is on it's back, but is apparently unharmed and returns to play music at the end of the episode. In "Power Animal", Beemo distracted Jake with songs.

They were later eating lunch together and Jake told Beemo to hold his sandwhich. It was later seen fixing the well overhang that lead to the gnome's underground hideout that Jake had destroyed while entering. In "Guardians of Sunshine", it is revealed Beemo has a button hidden under its control pad that allows people to be transported in games. However, it does not allow Finn and Jake inside it, claiming it's too dangerous of an adventure. Despite it's warning, Finn and Jake trick Beemo by tickling it with a feather until it presses it's button while it's sleeping. Beemo later appears when Finn and Jake exit the game. While trying to tear a bomba out of the game's interface, they make a hole in it. Beemo is then attacked by Sleepy Sam, Hunny Bunny, and Bouncy Bee for imprisoning them in the game. After Finn performs a combo move, he scolds them for going in the game and starts doing the combo move on them.

In the episode "Conquest of Cuteness" Finn and Jake call Beemo over to get a camera to take pictures of the Cuties but it turns out Beemo is a camera even though in the episode "Video Makers" Beemo has a video camera strapped to its head.

In the episode "Too Young," Beemo asks about Finn's date with Princess Bubblegum and doesn't tell Jake where the key is to the Wizard Tower. When Jake is trying to cheer Finn up when PB dumped him, Jake puts both his feet on Beemo, using it as an ottoman, which annoys Beemo.

Beemo makes an appearance in "Adventure Time with Fionna & Cake". However, despite its appearance remains the same in the modified opening sequence, it has no spoken role in the main episode when Cake is playing a video game. So it is unknown whether Beemo has gender-swapped or not.

Playable games

 * Adventure Masters (Business Time)
 * Racing game (My Two Favorite People)
 * Bug Battle (Donny)
 * "Galaga" or "Space Invaders" type game (What is Life?)
 * Conversation Parade (Rainy Day Daydream)
 * "Ghost game" (Slow Love)
 * Guardians of Sunshine (Guardians of Sunshine)
 * Blok Invasion (What is Life?)
 * Tower Climbing game (Too Young)

Appearance
Beemo is a medium-size green handheld gaming device, sometimes appearing with one or two controllers (Usually, each controller has one red button and a joystick) attached to it. When it's not being played it has a pixelly face. The letters "BMO" are printed on its sides, indicating its name. Also, it has a button (located under the D-pad) that sends the target into its main-brain-game-frame.

Beemo possesses several attachments which can allow for other options aside from playing games, including a video camera that allows for the making of movies and a cord to allow for display of its screen to a wider audience. It also possesses editing software for the making of films, but has personal choice regarding the footage that is used for the films it can create. In "Conquest of Cuteness" Beemo reveals a built-in camera with the flash emerging from the top left of its head while its screen becomes the lens.

In "Too Young", another kind of controller is shown while Jake is playing a game.

Gender
Despite usually being referred to as a "he," Beemo has been confirmed to be genderless. Beemo is referred to as "M'lady" by Finn in "Conquest of Cuteness", but Adam Muto has stated this doesn't mean anything via his Formspring. When being referred to by Finn, he will use masculine pronouns. When referred to by Princess Bubblegum, she will use feminine pronouns.

Quotes
See: Beemo/Quotes

Trivia

 * Beemo looks like a half-Macintosh half-Game Boy Color with Atari 2600 controllers. It also shares some traits with a Vectrex.
 * Adam Muto confirms that Beemo's backstory will be explored in a later episode.
 * In the House Hunting Song, Marceline says that she is "invested in this very cute video game" while holding Beemo. This shows rather that she is interested in Beemo, likes its video game, or the video game includes something cute, like a puppy. Marceline is also seen playing it without a controller like a handheld, which explains why it has buttons built in to it.
 * Beemo has a very Korean-ish accent.
 * In "Her Parents," Beemo appears to like scrambled eggs, even though it doesn't eat them.
 * Series creator Pendleton Ward has mentioned the existence of a smaller 'CMO', and a large, 'Death-Star-like' "AMO". Jesse Moynihan says that the ideas are getting "thrown around" on his Formspring, but that there's nothing solid yet. These characters may appear in a future episode.
 * There is a Beemo tee-shirt in the FusionFall game.
 * Beemo is sometimes seen with two slots to plug in contollers and sometimes with a compartment on that spot that opens up to were controllers can be plugged in.