Guma resemble giant bulls and constantly hurl chain hammers in an upward arc, making approaching them somewhat difficult. If Link can get under the arc of the attacks, he can strike without being hurt. They are common throughout Parapa Palace.
This enemy's name can also be transcribed as Gooma, which is the name given by the translation team to a new boss exclusive to non-Japanese versions. Artwork used for Gooma actually seems to be art originally intended for Guma, also.
The Doomknocker is an enemy in the same game which has attacks that are similar to that of Guma. Its Japanese name (ヘルグーマ) translates as "Hell Guma."