Dillon is a slender armadillo. He has red armor that begins on his head and ends at his tail. His skin is goldenrod and visibly rough. His nose protrudes forward into a snout, and he wears a cyan and yellow bandanna tied around his neck. He has two relatively long arms that each end in three sharp, brown claws covered by a glove. Around his waist, he wears a leather belt that contains a holster. He has two small legs compared to the rest of his body, donning boots most of the time.
In the games, he does not speak, and his squirrel sidekick Russ describes him as a "strong, silent type".
In Super Smash Flash 2
Dillon appears as an Assist Trophy in Super Smash Flash 2. He uses his signature Rolling Attack four times, an attack in which Dillon rolls into a ball and then charges towards the nearest player, damaging and launching anyone in his path. Whenever he reaches a ledge, he recoils and jumps backwards. Dillon then executes his Arma-Charge, a more powerful version of the Rolling Attack, before falling off the stage and disappearing. If a player makes contact with Dillon while he is preparing his Arma-Charge, he/she will receive damage.