Super Mario Bros.
Sent in by Thog the Caveman
Dolbio was the third brother of Mario and Luigi, who was separated at birth
from them. After a few years, Bowser found Dolbio, and trained him in his
evil ways. Bowser concluded that if were to be killed, Dolbio could take over,
and rule Bowser's empire. Dolbio a little more powerful then Mario and Luigi,
because he is very fast, can jump very high, and has the ability to change
into one of his brothers. Eventually Dolbio learns of his true heritage, and
tries to help Mario and Luigi, but it's game over for him when he held
down Bowser on the last level so that Mario and Luigi could cut the
bridge. However, when Bowser came back in Super Mario Bros. 3, Mario
and Luigi wondered if Dolbio was alive. The answer is, maybe...