Someone can really help you, you have to go at the main menu, then click 'friend rescue' or 'send SOS' (or something like it) then click to send a SOS with code. Then you get a code. post that code here and someone else will enter that code in his game (at the pelliper post office) then he will have to enter the same dungeon as you fainted in (if he already unlocked that dungeon) and then go to the same floor, then there will be a tile. If stepped on the tile, the dungeon is finished. Then he (the one who rescued you) will get a code and he will post it here. Then you enter that code on your game by on the main menu clicking 'get A-OK mail' (or something like that) and then you can play the game again.
You can also send a 'thank you mail' with a present attached to it to the one who rescued you.
Well, that was kinda it