Sounds SIMILAR, but with how similar this game already is to Smash, who cares? Let the fan boys cry all they want, it'd be epic. My examples were bad, you're right. Imagine if certain games crossed each other? Toro in a Tekken tournament, Radec in the graveyard, Sackboy fighting off against other Big Daddies, Kratos fighting against Darkside from twisted metal. IMAGINE THE EPIC!
I'm not saying it'd be bad, just pointing out that it's been done before.