Capcom has said that Mega Man Battle Network 5: Team Colonel and Mega Man Battle Network 5: Team Protoman are now available for the Game Boy Advance. Take a look at the titles' official websites Colonel here and Protoman here for more information and screens.
Colonel currently has a 70 percent average review ranking on GameRankings.com (based on one review). Likewise, Protoman also has a 70 percent average review rating (based on one review).