Button Press Game Thing

I made this really useless game that I've dubbed "Button Press Game Thing™".

The objective of the game is simple - the game tells you to mash a key, you mash that key until it tells you mash a different key.
If you press the wrong key, you lose points. If you press the right key, you earn points.



Run this code to get it.

pastebin get 69jsqavU press

The code is on Pastebin: http://pastebin.com/69jsqavU

Enjoy mashing your keyboards. Report back with your scores.

Edit: If you want to play hardcore mode, play on a server. The slightest lag seems to make this game virtually impossible.

Oh boy, Mavis Beacon!

Time up!

Score: -1

WELL I'm good at games it seems ;)/>

Plays game, gets a negative score B)/>
Looks nice, but 10 seconds before it starts seems quite long, otherwise its nice!

I got a score of 6! :D/>
Good job on this game, It's a fun yet simple game that looks great.
I think you should maybe reduce the 10 second startup to something like 5 or 3 seconds though, as 10 seconds can be a bit long