Year Name Developer Machines
1987 The 4th Unit * '
Not Classified, | ???, 		データウエスト (Data West) x1 hb701fd pc8801mk2mr x68000 pc9821
1988 The 4th Unit 2 * '
Not Classified, | ???, 		データウエスト (Data West) fm7 hb701fd pc8801mk2mr x68000 pc9821
1989 Dual Targets - The 4th Unit Act. 3 '
Not Classified, | ???, 		データウエスト (Data West) hb701fd pc8801mk2mr x68000 fmtowns pc9821
1989 Zero - The 4th Unit Act. 4 '
Not Classified, | ???, 		データウエスト (Data West) hb701fd pc8801mk2mr x68000 fmtowns pc9821
1990 D-Again - The 4th Unit 5 '
Not Classified, | ???, 		データウエスト (Data West) x68000 fmtowns pc9821
1990 The 4th Unit 6 - Merry-Go-Round '
Not Classified, | ???, 		データウエスト (Data West) fmtowns
1992 The 4th Unit 7 - Wyatt '
Not Classified, | ???, 		データウエスト (Data West) fmtowns