Swing with the Scarlet Spider in Spider-Man: Shattered Dimensions
Activision released a new trailer for Spider-Man: Shattered Dimensions that shows off the Scarlet Spider alternate costume, which appears to be usable in the Amazing Spider-Man segment of the game.
In the comics, Scarlet Spider was a clone of Peter Parker named Ben Reilly, a by-product of the infamous Clone Saga.
It is currently unknown if this costume will be unlocked in gameplay or downloadable. If it's downloadable, it is very unlikely that Wii gamers will even see it.