User blog comment:Awesomesix/ERB Contestants Battle to the Death/@comment-7630469-20150305044855

More possible scenarios:

War
At least two of the contestants with armies (Washington, Wallace, Vader, Leonidas, etc.) have their armies battle it out.

Bangwagons
The hated contestants (Kanye West, Justin Bieber, etc.) are ganged up on at the beginning and killed almost immediately

Double-Cross
The contestants in teams (Ghostbusters, TMNT etc.) or in duos (Mario Bros., Bonnie & Clyde) have at least one person they are teamed up with abandon or betray them.

Standoff
At least two contestants with guns (Clint Eastwood, Blackbeard, etc.) are in a standoff to see who shoots first and who dies first.