Action Replay DS is really easy to use. All you need to do to activate one or more of the codes stored in your Action Replay card is insert it into your DS or DS Lite, and switch on. When it boots, remove the Action Replay card and replace it with your game card. The game is recognised by Action Replay, and you're offered a list of cheats to activate. These crazy codes have been cunningly cracked by Datel's dynamic dudes, who put in many hours making sure every DS game is trained and tamed. For example, codes for the ever-popular Mario Kart DS include Unlock All Nitro Courses, Unlock All Retro Courses and Unlock All Characters, Cars and Classes. You can Freeze Time, give yourself Power-Ups and Trophies, and bag instant Three-Star Ranks. You can opt to instantly complete any mission with a Three-Star Rank too. There are similarly-sensational enhancements for the rest of the DS roster too

But what if there are no codes for your game stored on your Action Replay card? How do you enter the Action Replay codes into your AR for DS? After all, you must update your codes database when you buy a new game, right? Well that's a doddle too. If you have an internet-enabled PC, just run the software application that was supplied with Action Replay DS, and connect your Action Replay to your PC's USB port using the supplied cable. You then press the 'Update' button to download the latest codes database to your Action Replay DS. Alternatively, you can download just the codes you need as XML files, and then transfer them to Action Replay through the application.