Mobygames isn't complete, but it's a community based site so if you come across adventure games that aren't listed, you can always contribute them.
Looney Tunes Collector: Alert! is in the database but listed as an action game.
http://www.mobygames.com/game/gamebo...ollector-alert
If you think it should be listed as an adventure game, you can always submit a correction and explain why you think it is not an action game.
