Bullet Bill - Super Mario Wiki, the Mario encyclopedia

Bullet Bills are anthropomorphic, bullet-like projectiles with arms in the Super Mario franchise, acting as common enemies. They are horizontally shot out of Bill Blasters, coupled with a firing sound effect to indicate their prescence, and fly in a straight line, going through walls. Some Bullet Bills

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Banzai Bill - Super Mario Wiki, the Mario encyclopedia

Banzai Bill - Super Mario Wiki, the Mario encyclopedia

Super Mario Encyclopedia: The Official Guide to the First 30 Years: Nintendo: 9781506708973: : Books

The Super Mario Brothers Monster Compendium -- Bullet Bill

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Cat Banzai Bill - Super Mario Wiki, the Mario encyclopedia