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Availability: This figure was available in Japan in 2001.
Additional Versions of Grimlock: There are many additional versions of Grimlock, for more information see our G1 Grimlock Toy Table.
Name Reuses: The name Grimlock was reassigned to Robots In Disguise Grimlock (2001-2003), Energon Grimlock (2004), Animated Grimlock (2008-2009), Fall of Cybertron Grimlock (2013), Age of Extinction Grimlock (2014), and Kre-O Grimlock (2014).
It is also hinted that the character T-Wrecks (2000) may be the Autobot Grimlock.