| | Open The Box (Ace) (sp.ACE) (set 8) (clone of: sp_openb) | 1969 | Ace | sp_openbg | | 0.00 |
| | Open The Box (Ace) (sp.ACE) (set 9) (clone of: sp_openb) | 1969 | Ace | sp_openbh | | 0.00 |
| | Open The Box (Barcrest) (MPU5) (set 1) | 1969 | Barcrest | m5openbx | | 0.00 |
| | Open The Box (Barcrest) (MPU5) (set 2) (clone of: m5openbx) | 1969 | Barcrest | m5openbx06 | | 0.00 |
| | Open The Box (Barcrest) (MPU5) (set 3) (clone of: m5openbx) | 1969 | Barcrest | m5openbx05 | | 0.00 |
| | Open The Box (Barcrest) (MPU5) (set 4) (clone of: m5openbx) | 1969 | Barcrest | m5openbx01 | | 0.00 |
 | Operation Bear (bootleg of Operation Wolf) (clone of: opwolf) | 1987 | bootleg (Bear Corporation Korea) | opwolfb | Shooter / Gun | 0.00 |
| | Operation Thunder Hurricane (ver EAA) | 1996 | Konami | thunderh | | 0.00 |
| | Operation Thunder Hurricane (ver UAA) (clone of: thunderh) | 1996 | Konami | thunderhu | | 0.00 |
 | Operation Thunderbolt (Japan) (clone of: othunder) | 1988 | Taito Corporation | othunderj | | 0.00 |
| Operation Thunderbolt (US) (clone of: othunder) | 1988 | Taito America Corporation | othunderu | | 0.00 |
| Operation Thunderbolt (US, older) (clone of: othunder) | 1988 | Taito America Corporation | othunderuo | | 0.00 |
| Operation Thunderbolt (World) | 1988 | Taito Corporation Japan | othunder | Shooter / Gun | 7.27 |
| | Operation Tiger | 1998 | Taito | optiger | | 7.50 |
| Operation Wolf (Japan) (clone of: opwolf) | 1987 | Taito Corporation | opwolfj | | 0.00 |
| Operation Wolf (US) (clone of: opwolf) | 1987 | Taito America Corporation | opwolfu | | 0.00 |
| Operation Wolf (World, set 1) | 1987 | Taito Corporation Japan | opwolf | Shooter / Gun | 7.75 |
| Operation Wolf (World, set 2) (clone of: opwolf) | 1987 | Taito Corporation Japan | opwolfa | | 0.00 |
 | Operation Wolf 3 (US) (clone of: opwolf3) | 1994 | Taito America Corporation | opwolf3u | Shooter / Gun | 0.00 |
| Operation Wolf 3 (World) | 1994 | Taito Corporation Japan | opwolf3 | Shooter / Gun | 5.50 |
