Army Men: Sarge's Heroes Edit
The Blue Spy appears in Army Men: Sarge's Heroes. Sarge Hawk chases the spy through a town and a bathroom until he is captured. It is unknown what happened to the spy after that. In most of the series, the Blue spies are notorious for giving away Green Army information to the Tan Nation so it is likely he was alligned with the Tan Army.
Agent Cobra BlueEdit
In the beginning of Green Rouge you can hear a unnamed Blue Agent say "this is Agent Cobra Blue". This spy was alone in a field though it was obvious that he was alligned with the Tan Soldiers that struck down the transport carrying the Omega Soldier. It is unknown if this is the same Blue Spy as the one featured in Sarges Heroes.