Last Ninja on the Tandy (TRS-80) Color Computer (CoCo)
Last Ninja 2 on the Konix Multisystem
Last Ninja 2 was planned for the ill-fated Konix Multisystem: "Filmed at ATD's offices, this film shows a Konix Multi System dev kit, upon
which Jon Steele demonstrates the first milestone of "Last Ninja 2", which ATD
were developing for System 3, for the Konix Multi System. The backgrounds are
navigable, but no character or animation is present."
Update: The Last Ninja 2 disks were discovered and transferred!
Read these two articles to sum it up:
Konix Edition recovery and
I'll check with Frank Gasking if and how these files could be made available...
Last Ninja 1 Olivetti Version
Here are some scans from the Olivetti box and manual: