Mario vs. Bowser
UPDATE
**Banjo vs. Gruntilda - Suor, Wilhuff
*Chell vs. GlaDOS - Walker
*Chris Redfield vs. Wesker - Suor
*Cloud vs. Sephiroth - bbbtime
Conker vs. Great Mighty Poo
Crash vs. Neo Cortex
*Fox McCloud vs. Wolf O'Donnell - Great_Paul
*Frog vs. Magus - Dra90n
*Katherine vs. Catherine - whipper
Kirby vs. Meta Knight
*Link vs. Ganondorf - bbbtime
*Luigi vs. Waluigi - paulg
**Mario vs. Bowser - Wilhuff, Scorp
*Mega Man vs. Dr. Wily - Wilhuff
Ness vs. Giygas
**Phoenix Wright vs. Edgeworth - Great_Paul, gitanil
Pokemon Trainer Red vs. Blue
Raiden vs. Vamp
*Ryu vs. Ken - Wilhuff
*Solid Snake vs. Liquid Snake - FlyingMetal
Sonic vs. Dr. Robotnik
*Sora vs. Riku - Genesis
*Squall vs. Seifer - Genesis
*Sub-Zero vs. Scorpion - Suor
*Tidus vs. Jecht - Genesis
Tom Nook vs. Crazy Redd
*Yuna vs. Seymour - vcharon