there is actually an emulator for the snes that can ONLY run from slot-2. Pity I can't remember the name...
links might be dead... i should check and update them eventually. anyways here is a quote from my slot2 guide stickied in the gba section of this forum. please keep in mind that nothing in this list is perfect, but they are slot2 alternatives.
for more information:
http://boards.pocketheaven.com/index.php
-another world
QUOTESuper Nintendo: Last updated 8/10/2008
Pocket SNES
This project was the first SNES emulator to run on a GBA Flash kit. While this EMU showed great promise as of 2004 the project was abandoned by Loopy. The EMU only supports a handful of ROMs and a full compatibility list was never compiled.
Compatibility:
http://www.pocketsnes.net/snes_roms.htm
Home page:
http://www.pocketsnes.net/index.html
Download 2/15/04 release:
http://www.zophar.net/download_file/272
SNES Adavance
FluBBa took up where Loopy left off and made some advancements and bug fixes to the original Pocket SNES source code. However, FluBBa has not released an update for 2 years. Version .1F is a version created from the source by Flubba with added compatibility along with other various fixes.
Graphics Utility:
http://www.zophar.net/download_file/279
SNES Advance Tools v4:
http://www.zophar.net/download_file/278
Download v.01:
http://www.zophar.net/download_file/273
Download v.01 Debug:
http://www.zophar.net/download_file/274
Download v.1F:
http://www.zophar.net/download_file/276
Download v.1F Secret of Mana Fix:
http://www.zophar.net/download_file/277
Snezziboy
Coded by Bubble2k for release on the GBA, this EMU was inspired by SNES Adavance. The compatibility was pretty good and growing until this EMU was abandoned and moved to the Slot1 EMU category. A Snezziboy Builder attaches the emulator core to the SNES ROM to produce a GBA executable ROM. Compatible with SNES Advance superdat for speed hacks and other patches.
Read the PHWIKI:
http://wiki.pocketheaven.com/Snezziboy
Compatibility:
http://wiki.pocketheaven.com/Snezziboy_Compatibility
Download v.26:
http://sourceforge.net/project/showfiles.php?group_id=166961