First game update

Hello!

So, here is the first update to the game. It's not much but spices things up a bit.

First, I added the "Fun mode". Basically, the Stars (PowerUps) spawn a bit more often and everything is a bit more interesting.

And secondly, I modified the scoring a bit to accomodate the new 'Fun mode'. The player wont get 1 and 2 points as before, but instead he/she will get 0.1, 0.3 and 1 point for switching the lane, picking up a star or smashing a circle respectively.

And lastly, there is a tiny bug I haven't found a way to fix yet. Basically, when you pick a Star (PowerUp) right at the moment when a previous PowerUp has ended, the new PowerUp wont be activated.

Hope you're as amused as I am of this new mode and I hope I'll be able to come back soon with a fix for the bug.