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Spike Cannons are enemies found in the Game Boy Advance game Wario Land 4. They only appear in the level Pinball Zone, which is situated in the Ruby Passage. Spike Cannons come in red, blue and green, with different expressions on their faces. They are found in the areas with wire mesh that Wario must climb to progress through the level. The Spike Cannons shoot spiked balls in an attempt to harm Wario. The top of the Spike Cannon acts as a platform that Wario can stand on, but he cannot stay for very long on it or else he will take damage. They cannot be defeated.
There are also similar enemies called Spike Duds, which are very similar to Spike Cannons in regards to appearance, but they do not shoot any spike balls and are safe to stand on.