Spike, MarioWiki

Spike Top, Newer Super Mario Bros. Wiki

Mega Spike, MarioWiki

Mad Spike, MarioWiki

Spike, Fantendo - Game Ideas & More

Mario (universe) - SmashWiki, the Super Smash Bros. wiki

Super Mario Bros. (Franchise) - TV Tropes

Clubba - Super Mario Wiki, the Mario encyclopedia

Foreman Spike, MarioWiki

Falling Spike, MarioWiki

New Super Mario Bros. U Deluxe - Giant Spike Pillar Tower, 2 players, Walkthrough

Spiked roller - Super Mario Wiki, the Mario encyclopedia

Stone Spike by Nompy-the-Land-Shark -- Fur Affinity [dot] net

Spike (enemy), Nintendo