Super Boy II

Super Boy II has less to do with any version of Super Mario Bros. 2 than it does with its predecessor, which is, in turn, based on the first Super Mario game. The game is identical to the first installment of the Korean-made unlicensed Mario conversions in terms of gameplay and visuals; level design is also very similar, with only slight variations and no new terrain, enemies, traps, etc.

None of the features omitted in the previous entry returns in this iteration; once again, there are no secrets, underwater stages, warp zones, bonuses, or other power-ups besides the mushroom. The only difference is in the actual layout of the locations, as well as in the message following a Bowser encounter in a castle; instead of being greeted by "Sorry Nothing", the player is encouraged by the order "Go! Next stage".