Reznor NSMB2
Series Mario series
First appearance Super Mario World

Reznor in Super Mario World.

Reznors are fire-breathing dinosaurs that appear in the fortresses in Super Mario World. They appear in the boss room on a rotating device on its platforms over a bridge of lava. The bridge crumbles leaving no floor to stand on. To defeat the Reznors, Mario must hit the platform a Reznor is standing on from underneath and jump onto the platform. He then must do the same to defeat the others.

Reznors reappear in the 3DS remake New Super Mario Bros. 2. However, they are standing on Rectangular Coin Blocks.