1. Introduction 2. How to get there 3. Time to explore-all the info 4. Fun with friends 5. Closing 1. Introduction The Underground is a broad and complex tunnel which is underneath the entire Sinnoh region, including the Fight, Survival, and Resort Areas. You will need the Explorer Kit, which contains some useful stuff, before you can go there. 2. How to get there First, press X (I'm going by the default control setting), then go to the Key Items pocket and select Explorer Kit (if you set it for instant use with the Y Button, just press Y). It will say "DS Wireless Communications will be launched." Select yes then save the game. 3. Time to explore-all the info The touch screen is the one you will be looking at the most. The top screen is the radar. When you see chunks of yellow-orange stuff, that's where treasure is! Use the touch screen to find out where they are. Then, face the wall and press A. You will see the message, "The wall is bulging slightly. Try digging into it?" Select yes. Each wall is different. You will see whatever comes up. You have a pickax and a sledgehammer. Select one of the tools to use and start digging. You can find some awesome stuff in there like Revives, Fossils, and Everstones. You can also find spheres which you can trade for goodies, traps, and more. Bury spheres and they will grow into a larger size than they where in the past. Press X and you will see the following list of options: Traps, Spheres, Goodies, Treasures, your character's name (I named mine Jerry), Go Up, and Exit. Traps: Shows the traps you have. Select one you want to palce, then press A on bury to bury it in front of you. Spheres: Shows the spheres you have. You can bury or throw them away. Treasures: Shows the treasures you have. Unlike the other two options, this one says Put in Bag or throw away. You will mostly get items like Fossils. Your character's name (it won't really say this): Shows how many shperes and fossils you dug up, your current score, and so on. Go Up: Returns you to the surface. No matter where you are, you will always return to the place you entered. Exit: Does what it says; exits the menu. Secret Base: Just like Ruby and Sapphire, decorate your own Secret Base. First, obtain a Digger Drill. Then, face any wall and use it. You can use the Goodies you have to decorate it any way you like. 4. Fun with friends Up to eight players can be in the Underground at one time. You can have lots of fun such as a little race to get to a wall first or setting traps for some laughs. Remember, it's not about competition; it's about having fun. Now go for it! 5. Closing Now you know all about the Underground and how it works. If you want to print out this or my last guide, feel free to do so. Just don't copy it. See ya! P.S.: The Digger Drill is good for one use only, so think carefully.