Bladers (or Bunby Hen or Bunby Heli in Japan) are helicopter robots that follow into their targets repeatedly. In Mega Man, they are green and blue, in some games they are red.
The name is mistranslated as "Bunby Hen" in Dr. Wily's Revenge.
Only one Blader ever appeared in Captain N. It has no mouth and is blue and has a pair of yellow eyes and angry. It only appeared in Mega Trouble in Mega Land. Kevin shot the Blader and was killed.
Bunby Tank and Bunby Top
Bunby Tanks only appear in Mega Man 7, Mega Man 8 and Mega Man and Bass. It seems to be cross between with a Blader, Dark Man and the Crazy Razy. Its head is the Blader,the body is a tank with two blasters and two separate, like a Crazy Razy's head and body.
The head is called Bunby Top. Both from Mega Man 8 and Mega Man and Bass are both versions of Bunby Tank DX and Bunby Top DX.
Bunby Catchers are enemies that are from only Mega Man 9. They fall to catch Mega Man. If it manages to do so, they will pull Mega Man in one direction. In Galaxy Man's stage and Wily's stage, it can be dangerous, because there are spikes. Without the shock guard, it will kill Mega Man with one hit by slamming into him.