For those of you that cannot burn your own roms, these are the chips needed to upgrade your pinball machine to the latest version, play a different version, or replace missing/damaged roms. Bally Williams Part #'s: WORLD CUP SOCCER CPU ROM U6 vLX2 A-5343-50031-1X WORLD CUP SOCCER SOUND ROM SU2 vL1 A-5343-50031-S2 WORLD CUP SOCCER SOUND ROM SU3 vL1 A-5343-50031-S3 WORLD CUP SOCCER SOUND ROM SU4 vL1 A-5343-50031-S4 WORLD CUP SOCCER SOUND ROM SU5 vL1 A-5343-50031-S5 WORLD CUP SOCCER SOUND ROM SU6 vL1 A-5343-50031-S6 WORLD CUP SOCCER SOUND ROM SU7 vL1 A-5343-50031-S7 WORLD CUP SOCCER SOUND ROM SU8 vL1 A-5343-50031-S8 WORLD CUP SOCCER SOUND ROM SU9 vL1 A-5343-50031-S9 WORLD CUP SOCCER SECURITY CHIP U22 v A-5400-50031-1