Regular show: Rigby Edition

Rigby's skills/habitats/traits

Rock, Paper, Scissors Master - Rigby is extremely adept at this game. Ever since the pilot episode, he has always beaten Mordecai (except in "A Bunch of Baby Ducks", "The Best VHS in the World" and "Death Punchies" where he lost to Mordecai).
Enhanced Speed - Being a raccoon, Rigby is most likely the fastest of the group, seeing as how he can outrun others. He has used his speed in various situations, such as retrieving The Cover to The Book of Park Records and momentarily escaping from the jaws of Snowballs in "Appreciation Day".
Light Sleeper - In many episodes, Rigby is shown to be a light sleeper. In the episode, "Ello Gov'nor", he saw the entire movie without falling asleep. Mordecai was deep asleep while Rigby was awoken at night in "Really Real Wrestling". This could be due to the fact that Rigby is nocturnal (like all raccoons). However, like Mordecai, he managed to sleep through being sent to Australia in "Mordecai and Rigby Down Under".
Vocalist - In "This Is My Jam" and "Video Game Wizards", Rigby can sing clearly and appropriately. However, in "Karaoke Video", he sings off-tune with Mordecai, probably because they were both drunk and didn't care what their voices sounded like.
Sharp Claws - He has sharp claws (like all raccoons) and he used them in "Ello Gov'nor" to attack the young employee who he thought was the haunted British taxi.
Sharp Teeth - He has sharp teeth (like all raccoons) and has used them in "High Score" to attack Garrett Bobby Ferguson and "The Best VHS in the World" to attack Mordecai.
Hamboning - Rigby says that hamboning will save a person's life someday, as it does in "The Power". It seems to work for him. In fact, in the episode "Exit 9B", Rigby yells "Hamboning!" several times to get Benson to snap out of his trance, thus saving both his life and Mordecai's from the excavator that Benson was about to crush them with.
Party Animal - Seeing how both he and Mordecai really enjoy partying, Rigby likes to party the most as seen in "Party Pete", "See You There" and other episodes.

Skilled Rapper - Alongside Mordecai, he is shown to be a very good at rapping in most episodes, examples being "Party Pete", "Rap It Up", "Laundry Woes", and "Saving Time". They also even tried to teach Pops how to rap to go against the CrewCrew to prepare him for the rap battle.
Sense of Humor - In most episodes, Rigby is often known to have a really good sense of humor and displays it a lot in episodes such as "It's Time" or "Skips in the Saddle".
Smooth Talker - Rigby seems to have to ability swoon ladies while using very good pickups. This was mostly shown in "Skips in the Saddle".
Skilled Liar - Mordecai proves to be a better liar than him many times, but he is still a good liar.
Stealing - As shown in a few episodes, he steals things, such as The Power.
Bank Shots - As shown in "Bank Shot," Rigby is extremely good at basketball bank shots, to the extent that even the God of Basketball recognized him as pulling off the greatest bank shot ever. Although this is really ironic because in a previous episode he was really bad at basketball.
Stuntman - Rigby expressed a desire to become a stuntman in "Caveman" and later received his stuntman license along with Muscle Man in "The Heart of a Stuntman."
Donut Master - Seen in "Carter and Briggs", wherein Rigby along with Mordecai practice the art of "donut driving", and eventually master it thanks to Muscle Man's tutelage, making them win the contest in the episode.
Imaginative - Rigby appears to have a wild imagination. The first obvious hint was possibly in second season's "Appreciation Day" episode. The most recent one was in season five's "Video 101". He shows a great deal of enthusiasm when it comes to his visual ideas. However, just like Mordecai's, his own imagination seems to know no boundaries, which evidently results in artistic exaggerations/fails.
Video Game Trivia - Despite his weak skills at many video games, Rigby knows a great deal about them, and was proclaimed an "Expert" on video games after correctly answering 10 questions about them in "Expert or Liar."
Mover - Rigby successfully completed a week as a mover in "Lift With Your Back," despite being forced to adhere to a body-destroying regime that required him to lift heavy boxes with his back. Though he was called the worst worker ever by the company's owner, he did successfully earn a paycheck for his efforts.
Utility Whipping - Despite mostly destroying objects with a utility whip in "Eileen Flat Screen," Rigby did successfully use the whip to grab Eileen's TV when it was thrown off an overpass.

Weaknesses

Brains - As seen in "More Smarter," it is shown that he is not very intelligent due to his inability to answer a simple math problem, saying 'more smarter' instead of 'more smart', and not knowing the difference between a rectangle and a square.
Careless - Shown in "A Bunch of Baby Ducks," he can't even feed himself. Even Mordecai said "Dude, you can't even feed yourself."
Claustrophobic - As seen in "Terror Tales of the Park II" story "Wallpaper Man," he can't stay in confined spaces for very long or he'll start to panic; he'll then stop breathing. It wasn't clear whether or not that this trait was canon, but was eventually confirmed in the episode "Portable Toilet", where Rigby once again shows symptoms of claustrophobia.
Strength - Rigby is a very bad at arm wrestling and Punchies. Even Pops can beat him at Punchies. Once he even tried to arm wrestle with Skips (while secretly cheating), and Skips accidently killed him. But Rigby has shown signs of getting stronger. In "The Night Owl", when Mordecai and Rigby get in a fight with Muscle Man and Hi Five Ghost, he seems to handle himself. He has also carried people who are heavier than him, like Muscle Man and Mordecai. In "The Best VHS in the World", he also showed signs of strength by slapping Mordecai in the face, kicking in the groin, etc. Then again, this could have been due to the events of Muscle Man's training in "Muscle Mentor". Also in "Do Me a Solid" and "Karaoke Video", he can break a VHS tape with his knee easily.
Bad​ Video Gamer - Rigby has only ever won at video gaming in a few episodes. This was first seen in "It's Time" when Rigby beat Mordecai probably because Mordecai was too frustrated to play video games. This happens again in "Bet to Be Blonde" when the loser of a video game has to face having blond hair for a week. Rigby cheats by unplugging Mordecai's controller and covering his tracks with a sock. In "Temp Check", he possibly has the same skill level as Doug as they both defeated each other in a fighting game. This has also led to a problem once in "Video Game Wizards" when Rigby keeps continuously pestering Mordecai about entering him instead of Skips. In spite of these, he seems to have beaten Mordecai in a game once in "Jinx" though it is most likely because of luck than skill. He was also the one to discover that The Hammer's weakness was furniture, in "Rage Against the TV".
Egg-Allergenic - Rigby is extremely allergic to eggs, as seen in "Eggscellent," where Rigby consumed so many eggs that he actually went into a coma because of it. Though in other episodes, Rigby is shown eating eggs, and doesn't get in a coma. Although this may because he ate so many eggs in "Eggscellent," or these eggs came from a certain bird in particular.
Fearful - Rigby gets frightened much more easily than Mordecai, particularly during horror movies. In "Ello Gov'nor", it was mentioned that Rigby once had to be walked to the bathroom every night for a week, yet rented another horror movie in spite of this, incurring a string of hallucinations throughout the rest of the episode. In "Death Bear," Rigby was the only one who wasn't afraid of going inside Death Bear's real cage, but it was probably because he thought Death Bear was just a myth.
Slacking Off - Rigby and Mordecai both have a tendency of slacking off from work, thus causing Benson to yell at them to stop slacking off. This is seen in almost every episode, especially "Think Positive."
Cleanliness - Rigby has been shown to not bathe regularly, as seen in "Limousine Lunchtime", because he said that he uses rain to clean himself.