And here is my string for arcade only, no pins:
("coin op*"|(upright|standup|coin*|quarter*|taito|bally|midway game|arcade)|coin-op*|coinop|neogeo|"neo-geo"|"neo geo"|arkade|acade|acrade|arcade|aracade) -wash* -xbox -dry* -tic*
You can change the exclusions at the end. I got a lot of results for washers, dryers, xbox, and nfl football tickets (game and standup), so those helped me filter them out.
Good work I added it as a search string.