I don't know if anyone else had this problem:
I couldn't shot down-left or down-right, so I changed the key assigned to "attack" from s to x. Now it works well.
Played 20 minuts circa (a quarter hour for the badge and five more mins to see what happened if I got the first key). Please, stop after the first fifteen minutes.
I did "We Wish You a Merry Christmas" in the hard mode and hit the 100% of the notes, using the guitar power only on 4X. I scored 56150 and placed 13th. How is it possible that someone did 8 times my score? Where have I done wrong?
This game is one of the most artistic on the website. The choice of this epic music accompanied by the "cruelty" of the expression of artificial junk makes it unique.