Christopher Columbus (aka Xpoferens Columbus) is a cancelled shoot ’em up that was in development by Misawa Entertainment for the Super Famicom / SNES in 1992 / 1993. The game was loosely based on the famous italian explorer, but with a fantasy twist: his ship was able to fly and to shoot energy bullets, to take down huge mammoths, weird sea creatures and ancient dragoons. It seems that Christopher Columbus was almost complete, it was even promoted in a catalog with other Misawa Entertainment’s titles from 1992 / 1993, but in the end the game was never released for unknown reasons.
Thanks to GhostSeed and MatthewCallis that posted the scans on the Assembler Forum! Thanks to Celine for the contribution!