You can play classic arcade mode which will dominate most players who venture into the territory. (jgghgames.com)
In the Battle menu you can fight online, in a classic arcade mode ladder of battles, plus VS modes against a second player or the CPU. (vg247.com)
Outside of the core versus gameplay you'll find the classic Arcade mode as an option, though USFII doesn't shake up that standard feature in any way. (nintendowire.com)