Ramona Flowers

Ramona Flowers is a strange girl with an even stranger past. Despite wielding a giant hammer and changing her hair colour every week-and-a-half, there are people in this world who don't take the hint that she wants to be left alone. Those people are her seven 'evil' ex-boyfriends (even though one's a girl). Ramona tries to shake these guys off when she can but it basically means that they attack anyone she dates, which can get awkward.

Ramona has a fierce dislike for each and every one of her exes bar the last, Gideon, who she loves-ish. That is until Scott Pilgrim comes along and defeats all her exes, pulverising them in a blast of awesome. Cool.

She has a bag which contains thousands of different items, and it is dimensionally transcendant (i.e. bigger on the inside) so it was probably built by Time Lords. She also has an arsenal of weapons to rival that of Optimus Prime - and so would you if all your evil exes were always running after you.

Another of her weird abilities is that she can teleport to escape awkward situations. Very convienient. In fact, thats how she came to meet Scott in the first place, by using a subspace highway in his head, so the ability may as well be renamed the Convienient-Inator.