** Syam Vist, who was a young adult at the beginning of the Universal Century, is voiced by the narrator of the original ''Anime/MobileSuitGundam''.
** The mobile suit museum in the first episode has a Zaku II in it with a gaping hole where its cockpit used to be, the implication being that it is in fact the one Amuro stabbed in the very first episode of the original series. In addition they are at Side 7, which is exactly where it happened. 
** The Delta Plus and Ankusha are successors to the Hyaku Shiki and Asshimar respectively, in the case of the Delta Plus, it uses the transformation mode the Hyaku Shiki was supposed to have but was dropped, Anaheim Electronics was only able to implement it now due to acquiring movable frame technology. And the Sinanju, and Kshatriya are based heavily on the Sazabi, and Quin Mantha respectively but scaled down, and the Sinanju lacks the funnels, beamshot rifle and torso-mounted mega particle guns its predecessor had.
** The Rozen follows the concept of Cyber-Newtype Hamma Hamma mobile suit.
** The battleship Rewloola from ''[[CharsCounterattack Char's Counterattack]]'' is still kicking about, being the flagship for the Sleeves.
** [[spoiler:Towards the end of the story Banagher and Full Frontal fight each other outside of their mobile suits not unlike [[Anime/MobileSuitGundam Amuro and Char]], the difference being that they're beating the crap out of each other with lead pipes]].
** The obligatory background events that reference other Universal Century series:
*** During the history lecture you can see names and dates of notable past events, including [[Anime/MobileSuitGundam0080WarInThePocket 0080]] and [[Anime/MobileSuitGundam0083StardustMemory Operation Stardust]].
*** At the beginning of episode two, when Micott asks what a "Gundam" is, Takuya explains that it's the first mobile suit built by the Federation, called the "White Devil" by Zeon. This is a reference to Amuro's famous battle where he destroyed nine Rick Doms within five minutes.
*** Once aboard the Nahel Argama, Takuya states that it must be destiny for them to be carrying the Unicorn Gundam, since the Nahel Argama was the mothership of [[Anime/MobileSuitGundamZZ the Gundam Team of the First Neo-Zeon War]].
** The Sleeves' arsenal of mobile suits wouldn't look out of place in a museum, with everything from Dra-C's to Gaza-D's, Gallus K's, EWAC-zack's (admittedly a Federation suit but doesn't look out of place considering the design), Dowadages, Dreissens, Geara Dogas, and almost everything in-between.
** In episode 3 Angelo's Geara Zulu is using a beam shotrifle that looks almost exactly like the one used by the Sazabi.
** In the beginning of OVA 4, Syam Vist is dreaming of the first ColonyDrop on Sydney. [[HollywoodGeography And they even got the skyline right this time]].
** The Sinanju's model number (MSN-06S) is almost identical to the MS-06S Zaku II Commander Type that Char once piloted, which is a clear play on its pilot Full Frontal being "The Second Coming of Char". Another gag is that Sinanju is described as moving "at three times the speed of a normal mobile suit."

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6th May '13 12:18:54 AM DarkHunter

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29th Apr '13 2:17:34 AM QuantumAeus

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Unicorn's Beam Magnum editing

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