Ultra-bitter spray is the purple colored spray in Pikmin 2 that the player can get from ten purple Burgeoning Spiderwort berries, or by finding a concentrated dose. When used, it temporarily turns any nearby enemy or bomb-rock into stone, rendering them unable to do anything.
There are fewer ultra-bitter berry carrying Burgeoning Spiderworts, which makes the spray harder to obtain in comparison to ultra-spicy sprays. In addition, this spray is normally discovered after the ultra-spicy spray, because while ultra-spicy spray is found on the required path in the Awakening Wood, ultra-bitter spray is not found until after the acquisition of White Pikmin, near the Bulblax Kingdom. Unlike the ultra-spicy spray, this spray type does not return in Pikmin 3.
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