Low on depth, but high on addictive fun is the best way to describe Defend Your Castle.
The controls in Defend Your Castle are very simple. You aim at the screen with your Wii Remote(your curser is a bread clip),you pick up stick people with A(or B) and you toss them in the air with your Wii Remote. Some of the people you can't pick up,such as the bigger guys. Once you start getting spells, you use them by pushing in the direction on the d-pad in which they're in. As I've said before, you can upgrade your castle after each round. Defend Your Castle doesn't end, it goes on forever. After each round you'll get more enemies which can leave your wrist sore,since you'll be flicking your wrist a lot.
In terms of graphics, you're getting a very simple looking game. It looks like it was made by a little kid(a good thing or a bad thing) which I like. It has its charm and the sky looks like paper mache. Everything is extremely simple and the framerate never takes a hit.
The sound gettings a little grating after a while. Sure, when you throw a guy in the air and he hits the ground, he makes a splat sound, but it gets really grating and will get on your nerves. There is no music while you're playing, but there is music on the main menu.
There's a great amount of replay value.You get two different difficulties and they are "normal" and "heroic".On heroic, you get quite a few more stickmen than on normal. When I was playing like round 10 or so, my wrist got really sore pretty quicly. There's 4 player co-op(drop-in/drop-out) which is a nice bonus and is really fun. When somebody joins the game, the game will adjust to how many people there are(such as add more enemies).
Gameplay:Leaves your wrist sore,but is still extremely fun,especially with friends.Simple,but addictive.9/10
Graphics:Looks simple,but looks pretty charming with its "a kid made this"look.9/10
Sound:Gets grating after a while,and with no music except for the main menu,it's a little weak.6/10
Value:Endless supply of rounds and fun multiplayer may keep this on your TV screen for a while to come.Plus,it's only ($5)500 Wii Points.9.5/10
In the end, Defend Your Castle is a fun and addictive experience that is totally worth 500 points. Playing with friends is really fun. It's fun playing by yourself, but multiplayer is where it's at. So if you're looking for simple clean fun, Defend Your Castle might fit the bill and is definitely worth checking out.