Roll (Marvel vs. Capcom series)

Roll is a character from the Marvel vs. Capcom series that made her first playable appearance in Marvel vs. Capcom: Clash of Super Heroes. While she was not designed for fighting, she is a secret combatant in Marvel vs. Capcom: Clash of Super Heroes and Marvel vs. Capcom 2: New Age of Heroes.

Marvel vs. Capcom: Clash of Super Heroes
Roll appears as a hidden unlockable character in the game in that she is the only unique unlockable character in the game in that she is not a palette swap. Though she's considered a "Joke Character" and plays almost exactly like Mega Man, albeit weaker and slower.

Ironically, Roll is considered one of the most effective characters to use against the final boss of Marvel vs. Capcom, Onslaught—her diminutive size negates Onslaught's massive beam attack, and her attacks can easily strike him.

Marvel vs. Capcom 2: New Age of Heroes
In this game, Roll appears as an unlockable playable character. But like the last game, she's still considered to be a "Joke Character", even owning her own special lowly "Roll Tier" in the bottom of most tier lists.

Ultimate Marvel vs. Capcom 3
Although Roll doesn't make a playable appearance in Marvel vs. Capcom 3, she appears as a collectable card in the free DLC Mode, Heroes and Heralds, alongside Mega Man, X, Dr. Wily, and Vile. Her primary and secondary abilities are granting the user the ability to automatically fill up the Hyper Combo Gauge by simply crouching. She also appears in Nova's ending as a member of the new Mega Nova Corps, alongside Mega Man, Proto Man, Beat, and Zero.

Trivia

 * Roll's theme in Marvel vs. Capcom is a remix of her special ending theme song from Mega Man Battle & Chase entitled "Kaze yo Tsutaete".
 * When performing a Super Jump, her dress flies up for one frame of animation before quickly being shoved back down by Roll, who then exclaims "Ecchi" which loosely translates to lewd or dirty.