Usually, Game Data is stored in Documents. My steam games and CD games store there. I might be wrong, But check anyways.
AppData is another one, If you go down to your task bar > Toolbars > Explorer. (Or search "Run")
Type %APPDATA% in the explorer and press ENTER. You should find the Ice age game folder somewhere, delete it.
Thats all i came up with, Hope i helped.