| | Tarzan (V109C) | 1969 | IGS | tarzan | Unplayable | 8.00 |
 | Tatakae! Big Fighter (Japan) (clone of: skyrobo) | 1989 | Nichibutsu | bigfghtr | Unplayable | 0.00 |
| | The Couples (set 1) | 1988 | Merit | couple | Unplayable | 0.00 |
 | The Dealer | 1984 | Epos Corporation | dealer | Unplayable | 0.00 |
 | The Grid (version 1.2) | 2001 | Midway | thegrid | Unplayable | 0.00 |
 | The Killing Blade (ver. 109, Chinese Board) | 1998 | IGS | killbld | Unplayable | 6.98 |
| | The Lost World | 1997 | Sega | lostwsga | Unplayable | 7.60 |
 | The Pit Boss (2214-04) | 1983 | Merit | pitboss | Unplayable | 0.00 |
 | Thrill Drive (JAE) | 1998 | Konami | thrilld | Unplayable | 6.18 |
 | Thunder Hoop (Ver. 1) | 1992 | Gaelco | thoop | Unplayable | 3.69 |
 | Thunder Strike (set 1) | 1991 | East Coast Coin Company | tstrike | Unplayable | 6.50 |
 | Tic Tac Trivia (Horizontal) | 1985 | Merit | tictac | Unplayable | 5.00 |
| | Time Crisis II (TSS3 Ver. B) | 1997 | Namco | timecrs2 | Unplayable | 7.13 |
| | Top Skater (Export, Revision A) | 1997 | Sega | topskatr | Unplayable | 6.50 |
 | Toukidenshou - Angel Eyes (VER. 960614) | 1996 | Tecmo | tkdensho | Unplayable | 8.17 |
 | Touryuu Densetsu Elan-Doree / Elan Doree - Legend of Dragoon (JUET 980922 V1.006) | 1998 | Sai-Mate | elandore | Unplayable | 0.00 |
 | Treasure Island (DECO Cassette, set 1) | 1981 | Data East Corporation | ctisland | Unplayable | 0.00 |
| | Turbo Sub (prototype rev. TSCA) | 1985 | Entertainment Sciences | turbosub | Unplayable | 0.00 |
| | Twin Squash | 1991 | Sega | twinsqua | Unplayable | 6.25 |
| | TX-1 (World) | 1983 | Tatsumi (Atari/Namco/Taito license) | tx1 | Unplayable | 5.50 |
