Meet Thexder, a jet-fighter-mecha-morphing robot from the land of the rising sun, available for every known platform under it. It's one of the earliest run 'n' gun platformers, hence the primitive graphics and sound. Look beyond this and a deviously clever, rapid-fire action experience awaits. One that inspired many better-known, much-revered examples from the genre such as Turrican, Metal Slug and Contra.