Yes, a cucco riding the ground.
I played around in the fire room of the Canopy with moon jump. Going around the outside of the room (i.e. going to the right before you enter) seems impossible; there's a big invisible wall blocking your way. Going around the left side of the fire also seems impossible because the fire is too big. Going around the right side (while inside the room) seems somewhat more plausible, but the gap and the fire are still pretty big. Even if you touch the green lum and death warp, you'll spawn inside the fire, so you get caught in a loop of respawning and dying until you get a game over. The only way I can see this trick happening is as follows:
1. Get the pirate to spawn.
2. Kill him from afar.
3. Get close enough to start the cutscene.
I've confirmed that the last two steps are possible. Once the pirate spawns, it's pretty easy to bounce shots toward him and kill him. You can then start the cutscene by jumping toward the wall on the right side of the fire. The only thing that remains is getting the pirate to spawn in the first place. I'll try it out.
Another thing I noticed is that there doesn't appear to be a loading zone to leave the room. It seems the only way out is through the cutscene.
1. Get the pirate to spawn.
2. Kill him from afar.
3. Get close enough to start the cutscene.
I've confirmed that the last two steps are possible. Once the pirate spawns, it's pretty easy to bounce shots toward him and kill him. You can then start the cutscene by jumping toward the wall on the right side of the fire. The only thing that remains is getting the pirate to spawn in the first place. I'll try it out.
Another thing I noticed is that there doesn't appear to be a loading zone to leave the room. It seems the only way out is through the cutscene.