Long story short when launching with Riivolution the screen is cut at the bottom a bit so it doesn't show the battle names and only shows half the battle portraits if you look at Mastaklo's older videos like this one
Peach's Castle N64 [SSBB Hack] (http://www.youtube.com/watch?v=qNb1z2X4i3M#)
and this one Knuckles is ready to Brawl [SSBB Hack] (http://www.youtube.com/watch?v=V6-6203TnTM#)
i have the exact same problem.