Super Mario Bros. 3/Enemies

Most enemies can be killed either by stomping or by the fireball attack. While fireballs only provide 100 points, you can stomp on multiple enemies in one jump for additional points. The first enemy in a chain is worth 100 points, and the next are worth 200, 400, 800, 1000, 2000, 4000, and 8000 points respectively. Continuing the chain further will provide 1 extra life for each enemy killed.

Special enemies may provide a different amount of points.

Boom Boom
The boss at the end of each fortress (or vehicle in World 8). Can be stomped on 3 times or killed with 5 fireballs or one hammer. It has two methods of attack. It either jumps much like Mario can or starts to fly in the mid screen area before it swoops down to attack.

Cannonball
A diagonally-firing ball that can be killed only by stomping on, Larger horizontally-moving ones are shot out of vehicles in World 8.

Bullet Bill
A horizontally-firing bullet that can be killed only by stomping on.

Rocky Wrench
An enemy in airships that can be stomped on or fired. It throw small wrenches when it gets the chance to. These projectiles cannot be destroyed, but they're very slow-moving.

Bob-omb
An enemy that will make an explosion shortly after being jumped on and stunned. It can be thrown when it is stunned.

Engine
A flame that comes out of cylindrical blocks that can only be stopped by Tanooki Mario's statue maneuver.