I guess you just weren't listening when Pegasus said that this tournament would have exciting new surprises in store for us! Maybe if you were smart enough to steal the tournament's secret new rules like I did, you'd be getting a field power bonus instead of me!
~ Weevil Underwood, revealing that he cheated in order to learn Duelist Kingdom's new rules about field power bonuses.

The very opposite of an Honorable Villain, these villains resort to cheating to win. As most conflicts in fiction are matters of life and death/Good vs. Evil and thus have no actual "rules," most characters in this category come from stories involving some sort of contest.

Cheaters can also be involved as in infidelity.