- You may be looking for Rexon.
Rexxon is a large leviathan-like robot that resembles a dragon and/or serpent. It has a metallic gray body with a long neck and snout, and has dark red spikes running down its spine. It possesses a wide mouth with two fangs in its front jaw and maxilla, and two prolonged eyes above its snout with black pupils.
Rexxon is a one-of-a-kind robot that exclusively appears in Toxic Caves. It is located at the lowest point of level where it slithers through the grimy water. If the player slips between the lowest set of pinball flippers in Toxic Caves and stands on the platform over the water, Rexxon will occasionally rise up out of the water and try to catch Sonic in its jaws in an attempt to swallow him. Similarly, Rexxon will hunt Sonic underwater if the player falls into the water.
Under normal circumstances, the player can avoid Rexxon by doing the Spin Jump. However, if Sonic gets caught in Rexxon's jaw, the player has to press , or repeatedly to escape. If the player succeeds and does a "great escape" from Rexxon, Sonic will be launched back to the pinball table and the player earns 15,00 points. If the player does not succeed, however, Rexxon will swallow Sonic whole and the player will lose a life.
In gameplay, Rexxon cannot be destroyed by any means, making it one of the few enemies in the game that cannot be defeated.
Powers and abilities
Rexxon possesses extraordinary jaw strength as demonstrated by it being able to resist Sonic's physical strength by biting down on him.
In other media
Rexxon appeared in Archie Comics' adaptation of Sonic Spinball in Sonic the Hedgehog #6, "The Spin Doctor". In this media, the Rexxon has a more cartoony appearance with light-green metal skin and is able to talk. When Sonic entered the Veg-O-Fortress, Rexxon took him to the Scorpius. Both Scorpius and Rexxon, however, were quickly beaten by Sonic.
- Rexxon is probably named after Exxon, a brand of motor fuel.