If you want the complete Tomb Raider II package, then this Gold Edition is the one too get. This Gold Edition contains the original Tomb Raider II as well as the Golden Mask expansion game.
This second game in the series offers many new levels of Lara Croft action, and she has new weapons, like the powerful M-16. She has also learned some new acrobatic moves, like climbing walls.
In this second installment of the Lara Croft adventures, she is in search of the dagger of Xian, reputed to harness the power of a dragon. The expansion game, Golden Mask, takes her to the Aleutian Islands where she is trying to find just that, a very valuable golden mask.
I have written reviews for each of these games, so instead of going over all of that material again, I am just going to put the links here so that you can check it out for yourself.