Shout Out / NGU IDLE

This game has a smorgasbord of shout-outs:

Boss Fight:

• A Large Rat (any any boss portraits that are edits of its own) resembles Rattata.
• The Skeleton boss' portrait references the Skeleton Trumpet meme.
• The Goblin shares a name with a character from Lost Mine of Phandelver, a Dungeons & Dragons campaign.
• Slow Zombie's portrait references the Basic Zombie of Plants vs. Zombies
• The Fast Zombie is from Half-Life 2.
• Rat Of Unusual Size references The Princess Bride.
• The Fairy's "Hey! Listen!" references Navi from The Legend of Zelda: Ocarina of Time.
• Floppy Mattress' description references The Hitchhiker's Guide to the Galaxy.
• T-800 is, well, The Terminator.
• One part of A Widescreen T.V.'s description promises "a bad time".
• The five giant moles you fight all reference the Guardian Diggers from EarthBound (1994), down to each of them (except Chad) claiming they're the 3rd best.
• Kid On A Cloud references Son Goku from and the Oriental Dragon boss references Shenron, both from Dragon Ball.
• Lester is a stand-in for Lakilester from Paper Mario.
• A Weird Two-Headed Guy references Zaphod Beeblebrox from The Hitchhiker's Guide to the Galaxy.
• A Bird Person's portrait looks an awful lot like Big Bird.
• The Hooloovoo is straight up lifted from The Hitchhiker's Guide to the Galaxy.
• The Rat God's portrait looks like the background of the music video of Eminem's Rap God.
• Massive Plant Monster looks like Plantera from Terraria.
• Spiky Hair Guy is a stand-in for Rick from Rick and Morty.
• The description for A Square Bear tells you to "not mistake this for a Carebear".
• Crasper, The Pissed Off Ghost is a much less friendly Casper the Friendly Ghost.
• Ghost Dad references the film as well as its star, with a reference to pudding pops. His appearance is based on a meme.
• The Metal Slime from Dragon Quest appears, though it is not an example of the trope.
• A Ginormous Sword references Ginormo Sword, and features one of its Neko Slimes.
• Kenny and Vic from Most Extreme Elimination Challenge are fought in succession.
• The "Robot Masters" arc is an homage to Mega Man, in which you team up with a "funky looking robot-guy with hipster length blonde hair". though the bosses themselves quickly depart from the Mega Man style. The Masters include:
  • Broken VCR Man, a direct parody of the series' Robot Masters.
  • Mr Plow and its jingle, from an episode of The Simpsons.
  • Former Canadian PM Stephen Harper makes an appearance, now with giant heat rays.
  • A Cyberdemon, from DOOM.
  • The series' Boss Rush is referenced through a fight with "ALL of The Robot Masters. Again."
  • Finally, Doctor Wahwee is a Captain Ersatz of the series' Dr. Wily.
• The Beardverse arc continues the practice of bosses referencing a wide variety of characters, connected on a certain theme:
  • Cousin Itt, from The Addams Family.
  • Rob Boss is found painting in the woods. You "feel really guilty for what's about to happen to this guy", but fight him nonetheless.
  • An Orange Toupée With Fists is a Trumplica.
  • Gossamer, from Looney Tunes.
• "Really Bad Sonic Fanart" is shortly followed by "Really Bad MLP Fanart".
• Loss.png is fought.
• Warping around Boring-Ass Earth, bosses include:
  • Two Bananas in Pyjamas.
  • Giant Raisins from California.
  • An Annoying Penguin, followed by "An Army of Annoying Penguins".
  • Finally, "The Elusive C.S" is revealed to be Carmen Sandiego.
• From Chocolate World:
  • A Chocolate Crowbar and its owner, Chocolate Freeman, reference Half-Life.
  • Chocolate Salty Balls parodies the Indy Escape.
  • Screaming Chocolate Fish combines the Big Mouth Billy Bass with the chocolate-obsessed fish from SpongeBob SquarePants.
  • A Mighty Lump of Poo parodies The Great Mighty Poo.
• The NCC-1701 D from Star Trek: The Next Generation is encountered.
• Michelangelo, Leonardo, Raphael, and Donatello are fought. Next are their riders: Michelangelo, Leonardo, Raphael, and Donatello.
• A Stickman Cowboy references West of Loathing.
• The portrait and description of A Stoner Kid parody Shaggy and Scooby.
• Moneybags, from Spyro the Dragon, guards the Traitor.
• DEFEAT, the boss fought after losing to the Traitor, is a Metal Gear Solid-styled Mission Failed screen.
• A Weird Goblin-Demon Thing is a green Ickis that's apparently "like a discount, scuffed Pikmin".
• Jambi is, well, Jambi.
• The Three Guys Shouting Out "Ed" are in fact edits of the Eds.
• The Life of the Party is Leonardo DiCaprio as Gatsby.
• The Stack of Krazy Bones are Brainlet Wojaks.
• JRPGVille sees the appearance of The Annoying Fan, A Suplexing Train, and the Final Boss and True Final Boss are Ornstein and Smough
• The Rad-Lands features A Small Bart and A Sealed Vault. The Lame Security Guard is clearly from Half-Life and A.C Skater is just A.C Slater on a skateboard.
• Back to School sees you fight The Flying Spinelli Monster, Groundskeeper Willy, and Mr. Belding.

Titans:

• Gordon Ramsay Bolton combines Gordon Ramsay and Ramsay Bolton.
• Jake From Accounting references the "Jake from State Farm" commercial, and his pose references the "You know I had to do it to em" meme.
• Walderp is a parody of the Where's Wally? books, and his gear sets are the outfits of Wally/Waldo and Odlaw.
• The Beast is a monstrous version of The Very Hungry Caterpillar.
• The Exile wields a Buster Cannon that's firing a Hadouken.
• The Godmother is a cross between a Fairy Godmother and The Godfather.

Features:

• The entire Wandoos system, from its operating systems to Gill Bates, are riffs on Microsoft Windows.
• Gold Diggers
  • The Drop Chance Digger is Fry, accompanied by Bender, specifically during their search for a seven-leaf clover.
  • The Adventure Digger is Indiana Jones.
• Hacks
  • The Augment Speed Hack icon features JC Denton.
  • The Hack Hack icon and text reference the Mars Attacks! Martians and their One-Word Vocabulary.
• Cards
  • Cards occasionally have "Cromulent" in their name.

Items

• The Exile drops a Black Lotus, an Uno Skip Card, a Buster Cannon, and both a Blue-Eyes White Chestpiece and a Blue-Eyes Ultimate Chestpiece.
• The Red Meeple Thing that drops from the Greasy Nerd is a piece from Carcassonne. The Anime Bodypillow is a reference to Barkley, Shut Up and Jam: Gaiden.
• The Space Gun that drops from Titan 10 bears the same name, general appearance, and color scheme as the Space Gun from Terraria. The caption also refers to the Terraria version's 'Pew Pew' sound.
• Titan 10 also drops a Red Shirt and The Cricket, with the latter's description referencing one of Will Smith's lines from the first movie.