Surprise, Engage, and Attack (S.E.A.) Legs are Cobra single-seat, two-legged assault walkers. They are armed with two guns mounted under the cockpit.
Cobra Commander deployed a group of S.E.A. Legs backed up by amphibious assault guns in an attack designed to stop the space shuttle from deploying a satellite that has the ability to detect their future network of Undersea Bases. The S.E.A. Legs were not particularly effective. Grand Slam took one out with his H.A.L., Steeler blew two up in the M.O.B.A.T., Stalker used the J.U.M.P. to drop a grenade in the tailpipe of another, and Rock 'n Roll shot the legs out of the last one while riding a R.A.M. The S.E.A. Legs were successful in destroying the Joes' H.A.L. and M.M.S.