IOS Software have a good seleciton of freeware games on their site.
 
 

 
FloboPuyo FloboPuyo
 
Your rating: [3]   (444 votes)
Our rating: [4.6]
 
Producers: IOS Software
"Play against an opponent, and try to connect 4 or more puyos of the same colour together to eliminate them from the screen."