ok, i think i got it! i have to press the key and touch the screen

i can see that following keys are embedded in angrybirds-mido.fayad.sh
A-C-D-E-P-Z-Q-W-X-Up-Down

i think all this keys do the same for me... zoom function

why are some many keys used for zoom function?
is it possible to quit the programm with a key press?

cheers