Music, Levels improved, intro dialogue

Hey guys, I've added music to the game! So now you can let it play or mute it! It begins in the main menu.

I've also improved levels: Level1,2 + Level 2 + Level 3

I've also added an intro speech block, dialouge block ( which isn't interactive, its supposed to be static) so that when you begin with level 1, text will pop up and tell you what to do!