Chasupa are enemies that appear in A Link to the Past.
A Link to the Past
Chasupa first appear as Link makes his way through the Hyrule Castle Tower in the Light World. They are nearly identical to Keese in that they will stay perched at a certain location until Link draws near. Once Link comes close, the Chasupa will start to fly around the room, aggressively pursuing Link before landing at a specific point. There is virtually no difference other than physical appearance to the Keese that appear in the game. Like Keese, Chasupa take just one slash from Link's sword or one shot from the Boomerang to defeat.