does microsoft or sony have a "mario killer" in the works?

[SmokedHostage]

leo-j said:

Lurker said:
Mario is the only platformer people buy anymore. It's impossible to make a Mario killer. Mario has stood the test of time since NES and continued to have consistent quality unlike Sonic.

I thought little big planet is nearing 3 million copies sold on the ps3

Next to 8.39, 9.21 and 20.76 million units sold to consumers, 3 million doesn't seem like much.

@OP no and they don't need to.  The Platforming genre is limited to strong selling veterans and weak selling newcomers.  There's no long investment to make.  Trying to destroy Mario with a new I.P., at this point, is like trying to destroy an army with a peashooter.