Chikuchiku

Chikuchiku (チクチク ) are hedgehog-inspired enemies from Donkey Kong on the Game Boy. They make their first appearance in stage 8-2 of the Rocky-Valley. Just like Sunaipā enemies, they stick to and go round the environment, walking up walls and ceilings in the process; they are also dangerous to touch from any side. Some members of the species approach a higher speed than other, trait which marks a differentiation in walking mechanic from other species that behave similarly, like Rappies and Purupuru. Chikuchiku cannot be defeated by anything, and it is best Mario dodges them at all costs.

The enemy's name comes from a Japanese onomatopoeia, meaning "prickly!".