Beat

Beat is a blue robotic bird from the Mega Man series

Super Adventure Rockman
Beat made his first appearance in Super Adventure Rockman. He is one of the robotic animals that are heroes, along with Rush.

Mega Man: The Power Battle
Beat made another appearance in Mega Man: The Power Battle. He can be used as a character's partner. He can damage some Robot Masters in the game.

Mega Man 2: The Power Fighters
Beat also appeared in Mega Man 2: The Power Fighters. Beat can also be used, but it's not a good idea to use it in Dr. Wily battles, as it's dangerous.

Trivia
Beat is the only animal protagonist in the Mega Man series that has wings.