Chacron is a rare neutral black/grey (two-tone) Chao with half-closed eyes that give him a bored or tired expression; in Sonic Adventure, he always makes a type of "trademark pose", but a bit different. His appearance is very misleading for novice players, because he may appear weak and tired, but he's actually very fast with a lot of energy and high stats.
He only appears in the Chao Race as the hardest rival.
In Sonic Adventure he appears in the Chao Race, only in the Jewel Race after the Emerald Course is won. He plays a misleading way, because at the start he stills for a few minutes in his trademark pose, but then he runs at an incredible speed, passing all of his Chao rivals, and winning. Unlike the other Chao, Chacron always makes his "trademark pose" while he stills, instead of standing up.
Sonic Adventure 2
In Sonic Adventure 2 he appears in the Chao Race, only in the Challenge Mode, you will compete with him in the race 2 and 10. Unlike Sonic Adventure, this time he does not stills and makes a trademark pose, he immediately runs.
- This Chao has become infamous among Sonic fans due to his high speed, which makes him difficult to beat in the Chao races.
- In Sonic Adventure, he is a two-tone black Chao, but in Sonic Adventure 2, he is a two-tone grey Chao.
- In Sonic Adventure, he has normal eyes, instead of half-closed eyes.
- In the Pearl Course, Chacron will start ahead instead of waiting.
- Chao can make Chacron's pose by giving them a Peacock.