Mega Man Battle Network 6 is the final game in the series, in which Lan's father gets a new job and the family moves to Cyber City, leaving behind Lan's classmates and friends from ACDC Town. WWW attacks once again, aiming to revive the legendary Cybeasts, Gregar and Falzar.[35] The Double Soul system is replaced with the similar Cross System, this time allowing the player to activate at any time, although it will be disabled if hit by its elemental weakness; players are also able to "Beast Out" MegaMan for a limited time, allowing him to tap into the power of the Cybeasts. Like the previous games, the Crosses and Beast Out differs depending on the version.[36]
The developers have stated the decision to end the series with the sixth game was only made part-way through due to wanting a new Mega Man series for the Nintendo DS;[18] the English version also removed a significant amount of content, mainly the removal of the Boktai crossover.[19] Reviewers generally showed little enthusiasm for Battle Network 6, with it being near-universally highlighted for its lack of changes from previous installments in terms of graphics and gameplay, although some praised its story.[35][36][37]