Disadvantages of the game:
Levelling up is not so fast as earler parts of DuckLife so you have to spent much time with the game.
Advantages of the game:
Leveling up is not so fast as earlier so you you won't be regret like "Is it end already?".
So length of DL4 is as + as -. Like i gave DL1 and 2 - 5 i'll give it 3.
great but laggy
add some achievements, background music sounds which player can change (for ex. with keys) , omptimalize code and that'll be great
...but 5/5 :)
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