Warpman is a port/remake of the arcade game Warp & Warp.
At the very beginning of the game, and at 4000 in a ROM without a header, there is a small copyright message.
COPYRIGHT 1981 1985 NAMCO LTD. ALL RIGHTS RESERVED
Present at 3800, there appears to be a message crediting a developer who died. This was written by a fellow developer, Fukashi Oomorita. The message appears to have been cut off, though.
THIS PROGRAM WAS THE POSTHUMOUS WORK OF SHOICHI FUKATANI. HE WAS ONE OF THE BEST PRO