Gameplay: 

This game contains elements from both the Mega Man X series and the Mega Man Zero series. The players are on a 2-dimensional overlay map with sprites where they engage enemies to finish their mission. Missions are selected from a list, displayed on a computer. The player can freely explore the game world during and between missions, and they must find the specified area themselves.

During the game, the player can use Vent or Aile to transform into different forms using Bio-Metals whose appearance and abilities are based on X, Zero, and the Four Guardians from the Mega Man Zero series, the latter four where their abilities can be used to solve puzzles and obtain special items found in the stage and also use the Nintendo DS Dual-Screen feature for an additional ability as well.