This bundle includes the first and second Tex Murphy adventures. Mean Streets is a flight simulator, an action game and a classic adventure game all at once. It is definitely dated, but still retains a lot of charm. It's recommended for fans to see how it all started and how many elements from the best games of the series were already there, but casual players should be aware that the story was later retold in "Tex Murphy: Overseer" in a more accessible fashion.
Martian Memorandum, the follow-up, thankfully lacks the shooting and flying sections and feels more focused. It looks very similar to other adventure games created by Access at that time (Countdown), with a mixture of digitized pictures and computer graphics. Like Mean Streets, it's worth noting that this game includes real speech when you talk to some characters. Very impressive for a game that came on floppy disks!
MM is an old-fashioned adventure game and includes staples of the genre like pixel-hunting and combining objects, but it also uses questioning as a way to progress through the adventure, allowing you to see the story unfolding as you interrogate different characters.
The best was yet to come, with the excellent FMV games that came a few years later, but Mean Streets and Martian Memorandum are still very good games that can hold their own. If you like classic point-and-click adventures, this compilation is a must-have!