Four and X, the hosts of Battle for BFDInote and by extension Two, the host of spin-off The Power of Two are taken from X Finds Out His Value, an old educational animation created by Cary and Michael Huang before they became known for creating BFDI.
Bonus Stage often made references to its predecessor series, High Score, especially in earlier episodes. In one episode, Phil makes such a reference to an evil robot ex-girlfriend. Joel responds by laughing and then gruffly saying that they don't reference High Score anymore.
In The Brothers Mario by The Game Station, has the eponymous characters knock over an armored truck with a million coins. They mention how it's enough to buy a new life. It's enough to buy 10'000 new lives.
Krillin's nickname for Dende "Little Green" is a reference to the infamous Big Green dub, named so for inexplicably calling Piccolo "Big Green".
Similarly, Piccolo's line "Everyone in Gohan's race can turn into a giant monkey!" said at a fast speed references the dub's quick line reads to match lip flaps.
In Cooler's Revenge, Krillin doesn't want to see Korin because last time he saw him, he kept calling him "Whiskers the Wonder Cat". A reference to the obscure Harmony Gold dub of the three Dragon Ball movies and everyone having name changes.
In a reference to TFS' past work during Dead Zone, when Ginger dies he says "What a douchebag". Referencing their old Neighborhood Cluck dub where he was named Douchebag.
Lucky Day Forever has some visible influence from Alek's other animations, like the robots from "Smile", the strange attitude of "Polsupah", and 514's facial structure which is comparable to the poet from "Hanged Man's Elegy".
Back when The Onion was a print magazine, it would have a page with a "continuation" of a non-existent article that simply repeats the sentence "Passersby were amazed by the unusually large amounts of blood." This sentence would make it into an actual article in 2008.
The end of "Instruction Manuals" has Scott attempting to follow a manual for a game titled "You Should Put Your Fork in the Microwave: The Video Game". A good joke on its own, but it's also a reference to one of Scott's older videos, "Cookin' Hard".
The revelation of Wendy's Employee having a brother named Target Employee calls back to Scott having first met Wendy's Employee at a Target store in "A Very Madden 08 Christmas".
SiIvaGunner, a channel made to pass off edited audios, remixes and arrangements of videogames songs as the real thing to unsuspecting viewers, does this with the channel it's based on (GilvaSunner). This happens on aspects from titling and thumbnails to even errors made in the original channel. For example, in GilvaSunner's rip of Mega Mushroom from New Super Mario Bros, a voice clip from Luigi was left at the start by mistake. On this edit by SiIvaGunner, he replicates said error as a gag.
In the October 2, 2008 HoloNet News broadcast, when discussing the Separatists' new super weapon, there was mention of how big a ship had to be to mount an ion cannon capable of wiping out entire task forces. The minimal values that the commentators suggest were 8, 12, and 17... which happen to be the different lengths Super Star Destroyers have had in various official media.
Before the recap of the 2nd part of the Rubber Soul mini-arc, Rudolf von Stroheim entered the Guile Look-a-Like contest and wins First Place, which is a reference to Guile being based on Stroheim.
Sort of. Jotaro mistaking Benimaru Nikaido for Polnareff is a reference to how Benimaru was explicitly based off of Polnareff (to the point that some of SNK's development team sometimes still call him Polnareff.)