One of the best party games out there. Very simple, gameplay-wise, but polished to perfection:
- Supports every possible controller/keyboard
- Allows 2 people to play on the same keyboard
- Allows manual setting of keyboard player slot (haven't seen it anywhere else, and it can be a real life saver)
- There is a button for quacking
- Control the pitch of quacking
- Tons of weapons
- Workshop support for weapons, levels, hats etc.
- Mutators
- Easy to learn, hard to master
- Hilarious

If there is one bad thing I could write about it would be that some less important functions have to be unlocked in single player mode, which I normally wouldn't touch in a party game. Otherwise, it's perfect!