I know there's already and 'essentials' topic, but I was wondering if, like the title says, anyone could recommend some good games. Preferably with a good replay value, but it's not necessary and obviously they should be fun

 

tetris party and bomberman blast.

 

WORLD OF GOO
I know it costs 1500 Wii points,but it IS worth it.
I tried the demo ,loved it and bought it.
but there's still the pirate wad installation way

 

World of Goo - incredibly fun, especially with friends.

Mega Man 9 - well, it's made of pure win.

Pokemon rumble - don't buy this, only get it if you can 'acquire it'. But it is quite fun.