SNK-PLAYMORE'S latest iOS release, Metal Slug X, continues the adventures of Marco, Eri, Tarma and Fio as they battle General Morden and his army of misfits. More of an upgrade than an actual sequel, Metal Slug X repairs the major slowdown issues that plagued Metal Slug 2. Additionally, it introduces five new weapons to the series (i.e. Enemy Chaser, Iron Lizard, Drop Shot and Super Grenade) an... more.