Beak To The Future
From Hungrysoftware
The third official Ducks expansion pack and the second huge official pack, once again featuring forty new levels accompanied with new images and sound. However, Beak to the Future is the first expansion pack to feature new objects such as moving transporters, badly-wired transporters, porcupines, etc. (see both adjacent pictures).
Also, due to the brutal modification of objects definitions, this pack disallows the ability to play the MAIN levels while it's loaded, and like World Wide Webbed, it is currently unavailable to buy and a five level demo exists for registered / unregistered users.