actially replace this single ROM on the PCB for the test
http://mamedev.emulab.it/haze/misc/eprom_2_vr_alpha_denshi.zipthis will reverse the effects of scoring, so if the computer scores it will add to your goals (although you won't get the celebration)
let the computer win the first 2 matches by doing nothing, then on the 3rd match take the ball to the top of the screen, and see what colour the cheerleaders are / take a photo of it. (this part should be easy enough, you don't have to score a goal)
is how it looks in MAME right now (you can tell it's the 3rd match from the display at the bottom)