Mario Bros.: The Underground

Mario Bros.: The Underground is the sequel to the NES classic Mario Bros., in which you bump the platform underneath the enemy to knock them out. The game debuted Luigi into the mix, which most would say is an absolutely great thing. This game too introduces a new character, as well as the Mario Bros. themselves and a few other characters from the series that didn't appear in the first Mario Bros.

Gameplay
The gameplay is basically the same as the first. Jump underneath the platform the enemy is standing on to flip them over, jump on top and run into them. This time on the other hand you can also use Melee attacks (punching, kicking, uppercut, etc.) to take out your foes. Once you wipe out all the enemies, you move onto the next level.