I played a demo version of this game 12-15 years ago and I can't remember what it was..
It starts with the players plane crashing to a jungle. In the first screen you meet a native woman who starts following you. During the game you have to avoid dinosaurs, maybe some other creatures as well. You could at least use stones as weapons, but there might have been other weapons as well.
The genre is a 2D adventure game. Kinda like Oddworld and Flashback, but better graphics than the latter one. I remember it was for Windows and if I remember correct the music was in midi format.
I couldn't google it with these search words. Maybe someone knows what game I'm talking about?

Bermuda Syndrome.. found it :)