Bull's-Eye Blaster

A Bull's-Eye Blaster, also referred to as simply Bill Blasters , is a type of Bill Blaster that fires Bull's-Eye Bills.

Super Mario Bros. 3
Unnamed Bull's-Eye Blasters debut in Super Mario Bros. 3, where they look exactly like normal Turtle Cannons. They only appear in World 4-5.

Super Mario World 2: Yoshi's Island / Yoshi's Island: Super Mario Advance 3
Bull's-Eye Blasters are unused in Super Mario World 2: Yoshi's Island; however, they do appear in Yoshi's Island: Super Mario Advance 3 in the final secret level, Endless World of Yoshis. Like green Bill Blasters, they are fixed in two directions, unlike yellow Bill Blasters. Like the game's other Bill Blasters, they do not have their usual skull icon. This is the first game to color-code them red.

New Super Mario Bros. Wii
In New Super Mario Bros. Wii, Bull's-Eye Blasters only appear in World 9-3. They are back to their original coloration from Super Mario Bros. 3, making them indistinguishable from ordinary Bill Blasters except they are taller constructions in pits and are somewhat obscured by fog (which can be temporarily cleared via Spin Jump).

Captain Toad: Treasure Tracker
Bull's-Eye Blasters reappear in Captain Toad: Treasure Tracker, conforming to a red color again.

Yoshi's Woolly World / Poochy & Yoshi's Woolly World
In Yoshi's Woolly World and its port, Bull's-Eye Blasters appear in Knot-Wing the Koopa's Sky Fort. The ones in alcoves only fire in one direction, but the ones hanging on the ceiling point themselves at Yoshi. They have a similar appearance as the ones in the previous Yoshi game.

Super Mario Maker series
In Super Mario Maker and its port, they appear when the player shakes a Bill Blaster, where they are red once again. In all styles except New Super Mario Bros. U, their skull icon gains angry eyes and devil horns, slightly resembling Bowser. They return in similar capacity in Super Mario Maker 2.