Bear

Bears are animal friends that appear in Sonic Adventure 2 and Sonic Adventure 2: Battle, where they can be used to level up the various stats of the Chao.

Bears can be found in Sky Rail. After going down the rail you start on, land on the lower platform with the bouncy spring. Near it is the Ram. If you take the bouncy spring to the upper ledge, the bear is walking between some pole things on the immediate right of where you should land by taking the spring.