Crest

The Crest is a symbol which three of the Tron Brothers (III, V and V) have on their bodies. III's crest is green and on his left hand, IV's crest is purple and on his right hand, and V's crest is blue and on his forehead.

When a Duel starts, the crest appears on the owner's respective body part and glows for the entire match. It allows the owner to resist the influence of the "Numbers", making a strange noise when one of them is Summoned. The owner is also able to literally disappear while using this symbol (IV disappeared with a strong wind gust, while III with a blinding light). The crest also glows when used this way.