Ganchan belongs to the "Okigaru Friends" like Runchan, Ohchan, Furenchan & Kiichan; Ganchan can be found ingame in HKO in London - in the bottom left corner with Ohchan, next to Burry Football Field
Ganchan is the "big brother" of the group. He isn't doing well with machines, but he will often come to rescue in times of need at the last possible minute.
The Okigaru Friends were devised by Sanrio designers in 1998. The names for the various Okigaru Friends members were decided by public vote that Sanrio organized.