That's Heart of Darkness for PS1, a really cool 2d adventure game. It was a lot of fun but a little short. Then again, alot of really great games are short.
This one ought to be pretty tough. Sorry the pictures are so small, they were the only ones I could find. If you guys think it's not fair, I'll come up with something else.
EDIT: Here are some hints-
For PS1
Came out on Apr. 30th 1997