Nemesis 2

Put the ''Penguin Adventure'' in Slot B of the MSX, and you will play as Pentaro the Penguin instead of your normal ship.

Insert the game Q-Bert in the second catridge slot of the MSX while the Gradius2/Nemesis 2 game is in the first catridge slot. While playing, pause the game with the F1 key on your MSX keyboard and type the following passwords, followed by the Return/Enter key.