Vivi solos
Zack gets mauled by a bear-- he's not fast enough to escape it and will probably try to fight it only to find it's invicible, Alucard's getting punched to hell, and Sora's almost dead from a bone breaking scream. Vivi uses Doomsday and everyone dies except him and Wesker.
Or Vivi can just not use Doomsday and let his team stomp the gimps but it's more funny this way.
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No problem!
This is a cute and pop genocide of love!