Among the slew of "Flappy Bird" clones coming out at the moment, with more or less interest, Grumpy Beaks brings a real good idea by offering to play with 5 birds instead of one.
The interest is twofold, since it allows on one hand to keep playing as long as at least one bird is alive; on the other hand you can now score between 1 and 5 points at each pipe sets.
For the rest, these grumpy beaks use strictly the same principle as their famous model.
See also:
Flappy Bird
