Manic Matching will test your memory, but there isn't enough variation to keep the game interesting for long. The goal is to match cards with numbers and pictures to remove them from the board, and the layout and design are as basic as the game, itself.
Be careful during installation, as the program will try and get you to download a toolbar and change your default search if you click "Next" instead of "Skip" in one of the steps. It also might need to add some additional Microsoft programs, which makes the installation lengthy. On our test machine, it was five minutes plus. The interface is very basic, with only four buttons to start a game, pause it, visit the publisher's Web site, or play fullscreen. These sit above a grid of face-down cards. The graphics aren't bad, but they're not interesting enough to carry a game that, at its core, never changes. You flip and match the cards and they're removed from the board. You get a certain number of tries and the levels increase in difficulty, which does keep it interesting for a while; but it didn't hold much long-term appeal for us.
If you're interested in testing your memory, Manic Matching is a good training tool, but it lacks any way to track your progress or benchmark your scores to see if you improve over time. It's free; but as we noted, it will try and add some extras during installation.