Nemesis '90 Kai (ネメシス'90改? lit. Nemesis '90 Revision) is a horizontally scrolling shooter for the Sharp X68000 Japanese home computer system. It is an enhanced remake of the original MSX-only sequel to Gradius known as Gradius 2. It was developed and published by SPS, the company responsible for the extremely arcade-accurate Sharp X68000 ports of Konami's Gradius and Salamander. Though development of this remake began in 1990, it was not released until late into 1993.