Wikipedia
Xexex
is a 1991 side-scrolling shoot 'em up arcade game by Konami. It draws on Irem's R-Type and Konami's other shoot 'em up Gradius, while adding the tentacle mechanics of Irem's other shoot 'em up XMultiply. It did not see a home port until 2007, when it was included in the compilation Salamander Portable, released only in Japan for the PlayStation Portable.