Turok 2 for GameBoy Color. It was one of my first games for the GameBoy and I still love it, although, objectively speaking, it might not even be average. The translation was bad and left me confused (non-native English speaker), the levels were not particularly well designed and the platforming and shooting was very bland. But I did not care and it really threw me into the Lost World (was a huge fan of the Lost World movie based on the novel and also the cheesy 90s TV series). The music was great, though, to the point that I would consider it to be in my top 3 all-time gaming OSTs (I think the composer was Alberto Gonzales). I replay it from time to time, nowadays on my retro handheld. Despite the general forgettable nature of the game, I still have fond memories playing it and the music plays a big role in this as well.