Erotic Eating: The icon for "Beat It and Eat It" on the level select screen shows a woman seductively licking an ice cream cone, in reference to the cover of the Atari 2600 porno game Beat 'Em and Eat 'Em.
It's probably a reference to Freakzone Games' earlier Manos videogame, where the Claw was one of the bosses (not that it was less out of place even there), and/or the fact that James Rolfe (the guy who plays the Nerd) put it as the number one giant movie monster in one of his early top tens.
Groin Attack: The opening sees the Nerd getting dragged into Game Land by the balls, a reference to the Action 52 review.
Harder Than Hard: "Hard as Balls", which disables the save function; "Fucking Impossible", which makes you a One-Hit-Point Wonder with five lives and no checkpoints; and finally "YOLO", basically the exact same thing as I Wanna Be the Guy's Impossible mode (that is, die once and you're back to the beginning).
Here We Go Again: The ending, where the Nerd finds that the game he was playing was designed to suck you in. He remarks that you'd have to be a "total nerd" to play it again... then proceeds to do exactly that. Roll credits.
H-Game: Beat It and Eat It! is a takeoff of the Atari 2600's naughty lineup. It's not sexy in the slightest, mostly due to the bizarre graphics.
Jump Physics: It's different with each character. Mike can jump the highest of the characters, whereas the Guitar Guy and the Bullshit Man suffer somewhat. The Guitar Guy compensates by being able to run faster, and the Bullshit Man can Double Jump.
Laser Blade: Mike's weapon of choice. It can also destroy destructible tiles.
Light Gun: The Nerd's weapons of choice. The default weapon is the NES Zapper, and there's also the Super Scope, which is stronger than the zapper, and relatively more so than the Bullshit Man's Dung Fu (it helps that it has the same range as the zapper). Like the shotgun in "Manos" The Hands of Fate (an earlier Freakzone Games title), it can be lost the moment you get hit or change characters.
Long Title: Most players chop it down to "AVGN adventures".
Planet Heck: "Thy Farts Consumed", which is apparently video game hell itself. Complete with DOOM references!
Power Up Letdown: Lampshaded with the rock weapon, a reference to the equally useless rock weapon in the Friday the 13th game. The Nerd complains about it when he first acquires it in the tutorial level.
Secret Path: Plenty of cameos can be found this way. This is also how you unlock Mike and the Bullshit Man.
Also, Mike can spot secret paths and destructible tiles.
Self-Deprecation: The developers cameo in "Thy Farts Consumed", having been sent to video game Hell for making the game itself. Also, at one point during the "Future Fuckballs 2010" level:
The Nerd: Whoever came up with this level is an asshole!
Sequel Hook: After The Nerd defeats the final boss you don't see him actually exploding and dying unlike any other boss he fought, Fred Fucks merely flies away out of The Nerd's sight while Game Land falls apart.
Tempting Fate: Some of the 1-ups can be found near death blocks. Feeling lucky?
There Is No Kill Like Overkill: The first ladder in "Dungeons and Dickholes" contains a ludicrous death trap devised by the Nerd himself in his Super Pitfall review - lava, flaming sharks, upside-down volcanoes, and spiked walls that close in on you. Andtwo death blocks.
Unexpected Shmup Level: "Future Fuckballs 2010" ends with a section parodying Silver Surfer, and "Dungeons and Dickholes" has a section where you ride on a baby dragon (with a fight against the Giant Claw).