Very simplistic with poor controls
I know the whole idea was to make fun of Ronaldo, which it achieved, but the game itself was pretty lame. Not to mention the controls were somewhat frustrating (the way he hung in the air for a second or two).
...As for Krystalglint's comment, Ronaldo has the record for most total goals scored in all his World Cup appearances, not the 2006 World Cup in particular.