Complex sentence: It was originally released for the NEC PC-8801 computer system, with subsequent versions being developed for the NEC PC-9801, Sharp X68000, MSX2, PC-Engine, Super Famicom, and mobile phones.
Split into simpler sentences: It was originally released for the NEC PC-8801 computer system. Other versions were developed for the NEC PC-9801, Sharp X68000, MSX2, PC-Engine, Super Famicom, and mobile phones.