The Limiters (リミッター Rimittā?) are objects that appear in the Sonic X anime. They are rings worn by Shadow the Hedgehog to restrain his power which he has worn since his creation onboard the Space Colony ARK.
The Limiters are golden rings that Shadow the Hedgehog wears on his wrists. When worn, they limit the amount of chaos energy Shadow uses during combat and other situations. They also produce two red cuffs on his wrists for fixation. Shadow can tap into his full strength when he removes them, giving him a drastic boost in power, though at the risk of thoroughly over-exerting himself; Shadow quickly tires out when fighting at just normal power without them.
The Limiters expand and contract to Shadow's will, allowing him to remove and put them on with more ease, although he can also remove them normally. The Limiters are connected to the red tongues on the black cuffs of Shadow's gloves; the red tongues disappear when the Limiters are removed, but will reappear when he puts them back on.
Seemingly given to Shadow the Hedgehog during his time on the Space Colony ARK, Shadow first removed his Limiters to boost his Chaos Control as Super Shadow so he and Super Sonic could send the Space Colony ARK back into orbit. In the aftermath, Sonic could only find one of Shadow's Limiters, which he gave to Chris who kept it as a memento of Shadow.
During the battles with the Metarex, Chris gave the Limiter back to Shadow so he would not lose consciousness in combat. Shadow would subsequently remove his Limiters several times to gain a power boost to combat enemy forces.
- When taking the Limiters off, they light up with a transparent yellow aura in the Japanese version. However, in the English version, the Limiters glow with a dark yellow color.
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- Masaki, Hiro (6 May 2006). "So Long Sonic". Sonic X. Season 3. Episode 78.
- Masaki, Hiro (18 February 2006). "A Revolutionary Tale". Sonic X. Season 3. Episode 68.
- Yoshimura, Kiyoko (4 December 2004). "Showdown in Space". Sonic X. Season 2. Episode 38.
- Masaki, Hiro (29 October 2005). "Trick Sand". Sonic X. Season 3. Episode 60.
- Masaki, Hiro (19 November 2006). "Station Break-In". Sonic X. Season 3. Episode 63.