I've been waiting so long to be able to play this great game again! This is the game that introduced me to the adventure game genre. Until then, I didn't really like VG's as they were mostly shooters, which I've never been very good at or interested in. UAKM has a great story and engaging characters.
One of the things that I've never quite found again in the Adventure genre is the multiple responses during interactions with other characters. Also, the responses that don't spell out exactly what you're going to say, it's much more fun and surprising, that way. It was one of the things that hooked me on Tex in the first place! I also love that Tex has something to say about almost every object in the game.