Gregory Jimson, better known as Commander Long-Neck is a commanding officer in the Koopa Troop along with his partner in crime, Jeff Tubhuffer under the service of General Nia<3. He is known for signifcant land expansion of the Dark Land into neighboring nations by using military force. He has control over the land management in the Dark Land Government and territorial colonization management, he also is the officer that instructs minions in the Koopa Troop to build new cities, castles, forts, portals, states, and other structures.