Good job on this entry! I like how the ghost and his attacks switch between matching looks, and the difficulty ramp up near the end makes it pretty challenging. Maybe the boss could have more attack patterns to switch between when switching his looks, that would add a lot to the boss fight.

Overall nice work!

 I really liked the different faces for the ghost!  The background music/sound was a bit weird. I don't know if it was the way it is supposed to be. Different/additional attack patterns would be nice. All in all, a fun little game :)

This game could use some major juicing (screenshake, impact sounds, etc...) 

I like how his facial expression and bullets change when he gets low on health.

Cool game!

Made me laugh when the ghost's face changed! Pretty simple gameplay - I think that it needs something else to shoot at... maybe the ghost needs to move or there be some additional phases, because at the moment you can just place the mouse in the middle of the ghost with your finger on the button, and then just avoid the attacks.