Certain legendary teams require specific "Keys" or scouting sequences to appear. Inazuma Legend Japan:
To unlock teams in this game, you must primarily focus on the Competition Routes (Taisen Routes). Unlike traditional RPG entries, this version is an all-star battle sim. You unlock teams by defeating them in specific tournaments or by recruiting key players to trigger "Team Unlocks" in the clubroom menu. inazuma eleven go strikers 2013 unlock all teams
If a team isn't appearing, check your scout list. Sometimes, recruiting the Captain of a rival team is the specific flag the game needs to unlock that team's full kit and logo in Exhibition mode. Certain legendary teams require specific "Keys" or scouting