Beta demo 2 file - Indie Devs

Here is the (more or less) full list of changes and additions for this update:

• Third episode (Cowboy) is now unlocked and playable.
• Made second episode (Knight) easier.
• New (original this time) sprites for Dragons (including death animation).
• Fixed some shading missing from several frames of the Knight's jump animation.
• Added TNT and Rock object.
• Added death animation for Archers.
• Added many new sound effect, thanks to OpenGameArt and the FreeSoundProject :)