- The series creators seems to be huge Square Enix fans.
- The first time Exia used the Trans-Am System he attacked Ali al-Saachez using the "Omni-slash".
- The Trans-Am Raiser is very similar to the Blasting Zone, and is actually nicknamed as such by fans.
- Setsuna F. Seiei and Saji Crossroad were respectively voiced by Riku and Sora's seiyuus.
- Keiji Fujiwara (Ali al-Saachez's seiyu) did Reno and Axel. On a side note, all three characters are red heads.
- Setsuna and Graham Aker's rivalry mirrors that of Squall and Seifer from Final Fantasy VIII', from hair colors (Brunette, Blonde) to personalities (Ascended Fanboy, The Stoic) and scars (at least in Graham's part).
- A fan video reveals the possibility that 00 Gundam's combination sequence with the 0 Raiser is a homage to GaoGaiGar's Final Fusion sequence.
- Both Exia and 00 Gundam/00 Raiser are seen using swords that double as rifles. 00 Raiser's are even called GN Rifle Swords, which is just a fancier way of saying "Gunblades".
- The A-Laws' Shako caps look exactly like the ones worn by Britannian military members.
- The second season ends with the message "The Childhood of Humankind Ends", which is a reference to Childhood's End, a novel in which a benevolent alien race comes to Earth and guides humanity into a singularity of consciousness, providing some vague foreshadowing of the events of the movie for those who get the reference.
Shout Out / Mobile Suit Gundam 00