Hariisen (ハリーセン Harīsen?) is an enemy that appears in Sonic Advance 3. It is a model of Badniks, created by Dr. Eggman, and appears in the underwater sections of Twinkle Snow. It resembles a pufferfish.

Attack pattern

When the player approaches the Hariisen, it will begin to puff itself up, revealing spikes on its body that point in six directions and then firing them. Once the Hariisen is spike-free, the player has the opportunity to attack them unharmed before it puffs itself up again with more spikes.

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