Here are some cheats and tips for the game Tecmo Bowl.
Counter only shows up to 4 downs.
494-D6B-F7A Have 49 downs
054-D6B-F7A Have 5 downs
084-EFB-E6E 8 min. 30 sec. per quarter
064-EFB-E6E 6 min. 30 sec. per quarter
014-EFB-E6E 1 min. 30 sec. per quarter
00D-C9A-3BE Infinite time