How do you play retro games?

Heart of the Alien: Out of this World parts I and II (SEGA CD)

73
MobyRank
100 point score based on reviews from various critics.
3.9
MobyScore
5 point score based on user ratings.

SEGA CD

ESRB Rating : unknown
BBFC Rating : unknown
USK Rating : unknown
ELSPA Rating : unknown
SEGA Rating : unknown
VRC Rating : MA-13