Metal Gear Acid - strategy story for the PSP, where you will be transferred to 2016. Terrorists hijack a plane with a Presidential candidate, with a leading candidate. In exchange for a hijacked plane, terrorists need to tell them everything about secret project "Pythagoras", which is being developed in a secret laboratory on Lobito island. You play solid snake who has to find out all about the secret project and steal the most "Pythagoras," whatever!