Ryuji Iwasaki (岩崎 リュウジ Iwasaki Ryūji?) is Blue Buster (ブルーバスター Burū Basutā?) of the Go-Busters. He is a warrior with excellent fighting technique, as well as the oldest of the team. His partner Buddy Roid is Gorisaki Banana. His Buster Power is super strength. However, this has a dangerous trade-off. When Ryuji uses his power too much he starts to overheat and has to take time to cool down. If he completely overheats, his personality changes to a very violent person, and might do some lasting damage before shutting down.