The very first game I ever played was Captain Comic 1 (1988)

The Adventures of Captain Comic (or just Captain Comic) is a classic 1988 MS-DOS platform game which is known for being one of the first side-scrolling games made for the IBM PC. It was developed entirely by Michael Denio. The PC version of the game was distributed as shareware. Later a version for the NES was published by Color Dreams as an unlicensed title. An unofficial conversion for the SAM Coupé also exists[1]. It was also cloned as "Pioneer Xenia" in 1990 by a team of Ukrainian programmers[2].