This article is about the enemy. For other uses, see Cannon (disambiguation).

Cannon, known as Houdai (ホウダイ lit. "Cannon") in Japan, is an enemy from the original Mega Man series that was created to guard energy resources. When a Cannon is inert, a metallic hatch covers its barrel. If a Cannon senses an enemy, its hatch will raise and extend a barrel that launches a large cannonball. They are only vulnerable to attacks while the barrel is exposed, being its weak spot.


Mega Man 3

Cannons are mostly found in Needle Man's stage, both the normal version and when Doc Robot appears.

Mega Man II

Cannons appear in Wood Man's and Needle Man's stages.

Mega Man: The Wily Wars

Cannons appear in the third Wily Tower stage.

Mega Man: Powered Up

Shield Cannon in Mega Man: Powered Up

Cannons are named Shield Cannons (ホウダイン "Houdai'n" in Japan) and now have eyes and different colors, but their pattern remains the same. They only appear in Challenge mode stages, and stages created with the Construction Mode.

Mega Man ZX Advent

Cannons appear as enemies in the "Mega Man a" minigame.

Hits Data Chart

Amount of shots/hits from Special Weapons it takes to destroy a Cannon.

Mega Man 3
Mega Buster Needle Cannon Magnet Missile Gemini Laser Hard Knuckle Top Spin Search Snake Spark Shock Shadow Blade
3 3 1 2 1 0 1 0 1
Mega Man: The Wily Wars
Mega Buster Rolling Cutter Super Arm Ice Slasher Hyper Bomb Fire Storm Thunder Beam
3 1 ? 0 1 1 2
Metal Blade Air Shooter Bubble Lead Quick Boomerang Crash Bomber Time Stopper Atomic Fire Leaf Shield
1 1 1 3 1 Y 3:1:1 1
  • Damage values for Mega Man 3's weapons in The Wily Wars are the same as in the original game.

Other media

Cannon in the comic

Cannons appeared briefly in Mega Man #43 protecting the area under Needle Man's control. Cannon also appeared on the Variant Cover of Mega Man #40. They also appear in the Sky Patrol's training room in Worlds Unite.


Similar Enemies