Tap-Tap the Golden
From the Super Mario Wiki, the Mario encyclopedia
Tap-Tap the Golden, as its name implies, is a large golden invincible Tap-Tap found in the third door of King Bowser's Castle in Super Mario World 2: Yoshi's Island. The screen slowly moves through a lava-filled cave as Tap-Tap the Golden chases after Yoshi. It can be hit into the bottomless pits, but it will only come back. Knocking it onto the edge of a platform will make it teeter as it tries to maintain its balance, but knocking it off of the screen is the best option, and several Fangs are around to supply Yoshi with eggs for repetition of this strategy. It is worth noting that Tap-Tap the Golden will actually jump over Yoshi if he gets too close, instead of attempting actual harm. While normally invincible, Tap-Tap the Golden can be defeated through hacking him into a certain type of lava.
Tap-Tap the Golden reappears in Yoshi's New Island in Bowser's Castle Break-In. This time, Yoshi must throw eggs at him not merely to defend himself, but to get to keys located behind it. Instead of the large, open area full of platforms, it is found in a hall not much taller than it.
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