this was in 1994 when their video game industry was just a bunch of homebrewers, it wasn't like japan where there were experienced chiptune composers all over the place.
(http://www.autoadmit.com/thread.php?thread_id=3688299&forum_id=2#33883101)
korea had a lot of exposure to Japanese PCs and games throughout the 80s and 90s (http://www.autoadmit.com/thread.php?thread_id=3688299&forum_id=2#34015829)
the tunes are 180 it's Yuzo Koshiro, one of the GOAT game music composers (http://www.autoadmit.com/thread.php?thread_id=3688299&forum_id=2#34015888)