Gold Bowser Statue
From the Super Mario Wiki
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Gold Bowser Statues are statues of Bowser that first appeared in Super Mario World. Instead of shooting fireballs they jump toward Mario or Luigi, and, unlike the gray statues, the gold ones can damage the brothers by direct contact. The only way to defeat it is to lure it into a lava pit. Their immobile counterparts are the Gray Bowser Statues.
Gold Bowser Statues also appear in a World-e level, Bowser's Last Stand, in Super Mario Advance 4: Super Mario Bros. 3, with the same appearance as those of Super Mario World. They are found in the second-to-last room before the Fake Bowser battle alongside regular Gray Bowser Statues.
A Gold Bowser Statue appears as a Kingdom Builder object in Super Mario Run. Initially, it was made available as a My Nintendo reward on February 9, 2017 for 200 Platinum Coins, although it can be unlocked normally in-game as a rare 6★ reward from a Bonus ? Block as of the version 3.0.4 update.