You can solo just fine...if you are the only one player on the server or if there are others on.
Corruption of the memory card can happen(but that's like going for a walk on a sunny day and getting hit by a car...can happen but the chances are low)...more or less there are 2 problems you will encounter(or not) EW(endless warp ->eternal loading screen) or FSOD (Frozen Screen of Death->you get a frozen screen and a nasty sound with it) at that point you lose all your unequipped items in your inventory(not the Bank inventory).
There are also programs to back up your MC, probable easier done on the Wii.
Rapid99
Connect With Us