Weird Dreams is an action-adventure created by James Hutchby and Herman Serrano for the Atari ST and released by Rainbird in 1989. Later it was ported to Amiga, Commodore 64, and MS-DOS.
Probably it won't be remembered for its gameplay, not so innovative, and the hard difficulty settings, but for sure, it has a horror-surreal atmosphere that is really unique. One of the scariest platformers ever created.