Just a heads up, when I load Super Batter Up (U) on my emulator, all I get is a black screen. It says the CHKSUM is OK, so I'm assuming there's a problem with the ROM itself.
This is one of the reasons why you should have ALL good, mature emulators on your machine (perhaps even multiple versions of the same emulator). In the case of SNES that would be SNES9x v1.51, ZSNES v1.51, and bsnes v064. They outshine each other in different ways.
Edit: Hey, it looks like SNES9x finally had another release (1.52).