If you own a PSP, odds are you'll want Archer Maclean's Mercury in your game library.

User Rating: 9 | Archer Maclean's Mercury PSP
If you own a PSP, odds are you'll want Archer Maclean's Mercury in your game library. It’s the sort of game anyone could pick up and play on the go, even if you only have a few minutes to spare. Though it is quite addictive, and you might find it difficult to put down. The controls are simple enough, you use the analog stick to tilt the board, using gravity to guide a glob of mercury to different goals. Though this may seem like a cakewalk, in practice it proves to be quite difficult, and there are times you might consider throwing your PSP against the wall. You see, Archer Maclean’s Mercury starts out simple enough, but after the tutorial levels of the first world (which are nice enough to give you an explanation of what to do for each goal) the game kicks in to high gear, forcing you to think fast, keep your cool and figure out what it is you’re trying to accomplish. But don’t fret. Losing in Mercury isn’t very punishing. You are given the option to restart the level right away, without any load times to speak of. This accompanied by the fact the winning is extremely rewarding, makes Mercury’s level of difficulty that much more easy to swallow. While great graphics and sound aren’t necessary in a game like this, Archer Maclean and his team at Awesome Studios added some great sound effects and each level is bright and colorful, which gives the game a very polished feel. The glob of mercury itself looks and moves like liquid, and is probably the most stunning visual in the game. This is a game that can be enjoyed by anyone, any age, (and anywhere, thanks to the PSP.) Like all good puzzle games before it, Archer Maclean’s Mercury proves that a simple idea mixed with solid gameplay can keep you busy long after that long flight, or car ride is over.