File:32344.gif Allen Jr. is the son of Allen O'Neil, and a playable unit in Metal Slug Attack. He was first introduced to the game as a pre-acquisition unit during the Extra Ops titled Boy Memories. Much like his father, Allen Jr. fires at enemies with his machine gun and uses a combat knife against enemies who get close to him. When Allen Jr. is placed in the same deck as Cabrakan, The Keesi III, and Formor, they form the "Boy Memories" team. This lowers their AP costs by 20%.