Treble

Treble is Bass' robot wolf. He is very similar to Rush. Bass can fuse with him to gain wings and fly using the Treble Boost, that was created based on the Rush Jet Adapter.

Mega Man and Bass CD Data
A wolf-type robot created to support Bass. It can transform into an adapter and join with Bass. "Grrrrrrrrrr!" Good point: Brute instinct Bad point: Habit of biting Like: Girls Dislike: Rush, Tango

Trivia

 * In Japan, Treble's name is Gospel, which was left untranslated in the MegaMan Battle Network series.
 * Treble is one of the many characters who have music-inspired names.