From publisher blurb:
If you can't Bang, you can't hang!
Superpowers are an urban problem, where kid and teen Bangers stake out turf and demand respect for their gangs with blasts of lightning and thrown cars. This exciting Add-On for the Trigger Happy RPG adds superpowers to the action, crime and grime, with gangers fighting the system and each other to make the best of their violent and complex lives.
The Bangers Add-On requires the Trigger Happy RPG to get full use, although much of the material is useful for other games.