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 re-appear in the 3DS game New Super Mario Bros. 2. However, they are standing on Rectangular Coin Blocks.

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