Yadokka (ヤドッカ?)[1] is an enemy that appears in Sonic Advance 3. It is a mass-produced, hermit crab-like Badnik model created by Dr. Eggman.


The Yadokkas mostly resemble Turbo Spiker Badniks.

Attack pattern

The Yadokkas only appear in Twinkle Snow. In gameplay, the Yadokkas attack by shooting their spiky shell like a rocket as they travel vertically as soon as they see the player and then they will try to escape though without their shell, the enemies are vulnerable to attack.


  1. (in Japanese) ソニックアドバンス3最強攻略ガイド. Shogakukan. July 2004. p. 21. ISBN 978-4091061737.

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