Super Mario series
Super Mario Bros. 2
In their first appearance in Super Mario Bros. 2, they pace back and forth and are usually in groups of two or more. They can't be jumped on or picked up, so players must throw other enemies or objects at Porcupos to defeat them.
Porcupos reappear in the Super Mario Bros. 2 port included in Super Mario All-Stars. They behave exactly the same as in the original, but are purple in color.
Super Mario Advance 4: Super Mario Bros. 3
Porcupos are also in Super Mario Advance 4: Super Mario Bros. 3, but only in the World-e level, Ground Work.
The Super Mario Bros. Super Show!
A single Porcupo appears in The Super Mario Bros. Super Show! episode On Her Majesty's Sewer Service as the pet of Koopfinger. When Mario and Luigi invaded Koopfinger's hideout though, the Porcupo simply hopped off Koopfinger's lap and ran away instead of trying to fight.