First off, you will need to apply the trespasser CE patch to get this working on modern operating systems. You can get it at trescom.org, which is a dedicated fan site for this game.

This is a unique and flawed game. The shooting is awkward, I had plenty of moments where my gun was practically in the mouth of a dinosaur and missed my shot. There are puzzles that are simply confusing and will require a lookup.

However, the physics system is a joy to play with and you'll get many chances to mess with it. The shooting system was forward looking being similar to what VR controls are today. The much-lampooned health bar on the avatar's boobs through way of a heart tattoo is actually a cool way to avoid Hud UI clogging the players screen even if you'll usually die in one hit anyway but it's really immersive. That's the way I would sum this game up, Immersive. It feels like a low poly island vacation with dinosaurs that need shooting and a story to uncover. I really enjoyed my time with this one and honestly, might give it a replay. Maybe it's not a "good" game but it entertained me more than a lot of conventionally good games have and that' has to be worth something.

TLDR: Play this game, it's worth your time.