After finished this course for the first time and then doing it again with rick, i feel now so much better equipped so here is my version - Crystal hammer!
It was so much fun to make, i’ve added my own graphics, high score, cool music, upgrades and so much more
and even loaded it to google play!
you can download it from here:
(theres a small bug with the sound, the music is muted by default, just go to the pause menu and change the volume 
)
