Tokomeki Taisen Puzzle Dama by channelmaniac
From Arcade Otaku Wiki
Symptom: Corrupt Graphics
Board had problems with the main board. Removing the ROM board and tapping on the main board would result in green flashes on the screen.
Resoldered 31S, 25S, and 16G. 14P had been replaced before and had bent pins. Straightened one pin and resoldered the chip.
Tested board.