After watching Ryu vs Scorpion on Death Battle, I'd figure their palette swap counterparts would have to make a good pairing. Fire & Ice versus Samurai Shodown's Fire & Ic--er--Water...

Ken Masters was made by Warusaki3
Sub-Zero was made by SeanAltly
Enja was made by 'be'... that's what the DEF file says...
Suija was made by misao

The Stage is called "Oriental casino 'Woo'" (casino) and was made by NeoGouki
The Music is called "Funky Dealer" and comes from JSRF - Jet Set Radio Future

Life was set to 150% and there is no time limit