Super Mario World/Enemies/Amazing Flyin' Hammer Brother

The Amazing Flyin' Hammer Brother is a Koopa that sits on a pair of flying blocks and throws hammers to both sides every time Mario comes near. The best attack is to time the approach and jump on the blocks from underneath.

Super Mario World enemies
Enemies
Para-bomb - Para-goomba - Fishin' Lakitu - Lakitu - Spiny - Bob-omb - Wiggler - Sumo Brother - Pokey - Monty Mole - Bullet Bill - Amazing Flyin' Hammer Brother - Super Koopa - Jumpin' Piranha Plant - Volcano Lotus - Chargin' Chuck - Rex - Mega Mole - Banzai Bill - Dino-Rhino - Dino-Torch - Koopa - Blurp - Porcu-Puffer - Urchin - Rip Van Fish - Torpedo Ted - Spike Top - Swooper - Buzzy Beetle - Blargg - "Boo" Buddy - Fishin' Boo - The Big "Boo" - Eeries - Dry Bones - Lil' Sparky - Bony Beetle - Hothead - Thwomp - Thwimp - Ball 'n' Chain - Grinder - Magikoopa - Fishbone - Reznor - Ninji - Mechakoopa
Bosses
Iggy Koopa - Morton Koopa - Lemmy Koopa - Ludwig von Koopa - Roy Koopa - Wendy O. Koopa - Larry Koopa - Bowser