Suggested games... but again I'll state that modding a wii is free and wiiware titles are easily found and installed
Castlevania Rebirth
Contra Rebirth
Fluidity
My Life as a Darklord
My Life as a King
Gradius Rebirth
Other Exclusives worth noting but maybe not worth buying
Harvest Moon: My Little Shop
Mr. Driller W
My Pokemon Ranch
Pokemon Rumble
Star Soldier R
Titles worth noting, but not worth buying because they are available elsewhere
Lost Winds
Lost Winds 2
MDK2