| Console: | Nintendo Entertainment System (NES) |
| TV Standard: | PAL |
| Country: | United Kingdom of Great Britain and Northern Ireland |
| Developer(s): | Intelligent Systems, Nintendo R&D2 |
| Publisher(s): | Nintendo |
| Release Date: | 1986-09-01 |
| Players: | 2 |
| Co-op: | Yes |
| ESRB: | Not Rated |
| Type: | Platform |
Mario and Luigi are doing some underground plumbing when all sorts of weird creatures come flying out of the pipes. Turtles, crabs - even fighterflies - attack the helpless Mario Bros. It's up to you to kick, punch, and knock out these sewer pests before time runs out! But beware. Just when you think you got rid of them, they come back for more! Play against the computer, or with a friend - either way, this is one underground classic you'll want to play time and time again!
Game Player of Mario Bros. on Nintendo Entertainment System (NES)Generally, you can review the controls (keyboard) setting during each game in the screen before it starts. Use the arrow keys and “Z”, “X”, “A”, “S”, “Q”, “E” buttons to play, or customize yourself with your gamepad or keyboard.
| Keyboard | Controls |
| ← → ↑ ↓ | Directions for LEFT, RIGHT, UP, DOWN |
| Enter ↵ | START |
| Shift | SELECT |
| Z | A |
| X | B |
| A | X |
| S | Y |
| Q | L |
| E | R |
