Similar to the previous game, "Rockman & Forte" (which was eventually released as a Game Boy Advance title in the US and in Europe, "Mega Man & Bass"), two characters are available for play: Mega Man and Bass. Mega Man plays in his traditional manner, where Bass deviates, as in the previous game, with a rapid fire standard weapon that cannot be fired while moving as well as the ability to dash (similar to the characters in the Mega Man X series) and double jump. The Robot Masters in this game do not exhibit a short period of invincibility after being damaged, allowing the player to continuously damage them where possible. A feature unique to the WonderSwan was a third set of controls located above the traditional directional controls, which allowed some games to be played with the screen oriented vertically. When selecting Aircon Man, the player is required to change their grip on the device, as the stage had to be played vertically. Finally, unlike previous games in the series, there are only five weapons to be obtained as opposed to the traditional eight; Compass Man does not surrender a weapon to the player upon defeat.