On the wii, all games are pretty bad, but this game breaks the chain with the amazing use of the wii remote
Weapon controls are different for each different type of weapon, and depending on how you hold your wiimote, you do a different attack and stuff. That is the best type of use for the wiimote, no pointing or anything. Another thing is the waving of nunchuk to carve items or harvest and etc. If you become lazy you can simply just use the 'A' button.
This game is highly addictive with the split screen option (WOOT, i get to play with my bro) AND you also get rare coins allowing you to make stuff. Have not tried online multiplayer yet due to the fact, that i'm trying to get far in offline, and yes your character is shared in offline and online
The amazing amount of space is not needed in my opinion, but it's always available. There are 6 files all with 3 characters each on them. Making a use of up to 18 characters in total. There is even the ability to take your character with you.
The best game of the wii yet, especially when it comes to wiimotes. Definetly worth buying, and i highly consider it. This game is the only reason to buy a wii lol