I recently install morphgear which works perfectly on the Tilt2. However, about the ROMS I dont know if we're "allowed" to discuss where to find them on here since it is considered illegal to download them if you do not own the game. Anyways, go to
www.morphgear.com1. Download and Install MorphGear [cab] which can be found in the Downloads section. You install it the same way you would install any other cab file by going to "file explorer" and clicking on the document.
2. Download the MorphModule you want, which in your case you said you wanted GBA. Note that these Modules are not free. (Not the GBA one anyways) The SNES Module is free though.
3. Install the module you want.
4. Open up morphgear and if you have a ROM in your posession click the icon on the left hand side (the one that looks like a folder) and load your ROM. Your ROM should now play.
In order to play full screen in either landscape or portrait mode you must configure the screen which can be done under global settings and/or settings of the Module you have downloaded which would appear once you have it installed.
That is about it. When I first downloaded this it had no sound. If this occurs, go to settings and check "enable sound"