Reddit reviews HOL: Human Occupied Landfill (Black Dog)

• Teenagers from Outer Space -- my favorite funny game, it's an anime inspired high-school comedy sci-fi game. Players play either aliens who have come to Earth because Earth stuff is trendy in the Universe right now, or the humans who have to deal with them (want an ancient anime reference? It's pretty much Urusei Yatsura: the Game). Aliens can have wild powers, but humans have the Human Fake-Out: aliens believe anything a human tells them because 'they're from Earth and you're not'. Shennanigans ensue (also has a great section on 'how to be funny').
  
  
• HOL (Human Occupied Landfill) -- more fun to read than to play (I assume -- never played it but loved reading it). The handwritten (!!) manuscript describes an offbeat science fiction setting that takes place in a planetary landfill/prison for the criminally insane. Impossible to take seriously.
  
  
• Ork: The Roleplaying Game -- you play an Ork in a fantasy setting where Orks are violent, short tempered, cruel and ill-fortuned. It's a game that's about letting out your worst urges and not feeling bad about it because your Ork could be crushed by a refrigerator falling out of a magical portal any second.
  
  
• Stuperpowers -- My funniest game sessions have been playing Stuperpowers, and it always shows up during 'beer and pretzels night'. You get three random and incredibly worthless super powers and you make a super hero out of them (just for fun, I'll roll an example: make a hero out of 'Turn yourself into a Picasso-esque figurine'; 'Pied-Piper Karaoke (others must follow you for as long as you keep singing pop songs); and 'Switch Stomach Contents With Anyone Else'). Also has a mad-libs style adventure generator and 'live action' rules (a Stuperpowers party game)
  
  
• ELFs -- in ELFs you play childish, mischievous Elfs on an adventure. The core mechanic of this game is that you get bonuses to actions when your character expresses one goal but you the player express another (for example: your Elf might be trying to chop the orc's head off, but what you the player want if for him to trip and fall off the balcony into a lake so he can escape). I never actually played this one, but always thought it sounded funny.
  
  
• Murphy's World -- Murphy's World is actually more of a system-independent source book than an RPG unto itself, but still tons of fun. The tagline of Murphy's World is 'it can always get worse' -- it's a sci-fi/fantasy/adventure RPG that takes place on Murphy's World, a planet bombarded by a mysterious radiation that makes any attempt to plan, build, or seriously try to accomplish something go completely awry. Every game is a ridiculous comedy of errors, created by randomly selecting various tropes from the book and inflicting them on the player (an example: 'The greater the desire to find something or an item of information you are searching for, the less likely it will turn up'). The strange magic of Murphy's Worlds sun also means that wishes and desires are fulfilled exactly when you don't want them to in exactly the way you don't want them fulfilled. If you're a GM who loves to mis-interpret wishes in D&D, it's the setting for you.
  
  That's everything I have on my shelf/hard drive. I remember Trollbabes being sort of humorous, and I'm surprised no one has mentioned Kobolds Ate My Baby yet (I didn't really like that one, honestly).
  
  Edit: formatting (lurking ill-prepared me for markdown)

It's not a video game per se, but the environment could easily be one: The fast-paced, over-the-top chaotic gladiatorial combat in the Superjail episode Combaticus (or really any of the combat sequences). Ludicrous melee with punchy dice rolling mechanics to not bog down the action.

I envison an unholy union between the unlikely combinations generated by Superfight, the needlessly gratuituous cartoon violence of Time Killers, and the nihlistic, Mad Max-meets-Escape From LA aesthetic in Hol.

The crowd roars as the spotlight shines on two rascals in a trench coat, armed with a trident and who can control magnetism and a velociraptor armed with a gatling gun singing showtunes lock eyes, ready to lock in mortal combat. Suddenly the gate at the far end of the arena opens to the revving of a small engine, reveal a two-story Pope armed with chainsaw hands, rampaging out from the darkness, a fury of white rainments and smoke.

Something like that.