If you enjoy adventure games, be sure to give the PSP version of Spider-Man 2 a try. It's got a nice combination of puzzles, exploration, and fighting enemies.
You are of course Peter Parker, newspaper reporter by day and crime-fighting webslinger by night. There is a nice amount of plot here, with well done cut-scenes that help to move the story along. You get the sense that you are participating in a sequence of events, not simply bashing away at random enemies.
The grahpics are really quite impressive, from the buildings you move around and the people you encounter. The cut scenes in particular are quite well cone.
The sounds are reasonable, with the original actors coming on to reprise their roles. Again, this really helps with the immersion factor of the game, that you are really becoming part of the Spider-Man world.
I like the fact that gameplay is a mix of styles. Sometimes you are saving cars from falling. Sometimes you are pulling down enemies in helicopters. Sometimes you are kicking and punching with street punks. In addition to your main objectives, there are other things you can do, other places you can go explore. It's up to you how you handle your current list of objectives.
If you just focus on the main tasks, you can zip through the game pretty quickly. But that is true of most adventure games. The glory is that you can roam around at your leisure, exploring the nooks and crannies, looking to see what hidden secrets are waiting for you. That is what helps the game last a long time and adds to the replayability factor.
Buy Spider-Man 2 PSP from Amazon.com