So Roll's always been just a sort of sidekick to megaman,

But she was a playable character in Marvel Vs Capcom 2, which I never used mind you.

However I saw one of the 100,000 strong livestreams like a week or so ago, and they brought up the fact that one of her special attacks is quite literally "rocket boobs". XD She gets huge and she fires rockets from her chest. It's one of the best things I've ever seen. It's one of the best things Megaman here's ever seen as well, it seems. ^^;;