Dot Hack Chim Chim. Bring your own Sphere. Chim Chims (チムチム) are small, four-legged creatures found hidden in trees, giant mushrooms, and other places in the fields and dungeons of The World R:2. On the tops of their heads they carry an item called a Chim Sphere, the main power source for many machines (such as Steam Doors, Warp Points, and Mecha Grunty) found in The World. Power is measured in "Chims", a unit equal to the amount of power in a normal Chim Chim's sphere. Chasing and kicking them results in the spheres falling off of the Chim Chim and into the player's inventory. However, this causes the unfortunate Chim Chim to whither away into nothingness. One of the NPCs living in Mac Anu, Dr. Kubo, studies the Chim Chims' civilization as a profession. The energy in Chim Spheres is gathered from the earth, and when they have built up too much energy, Chim Chims gather in the Coite-Bodher Battlefield to release it in the form of a brilliant fireworks display.