Version 1.2

Some post-jam fixes and updates.

• Added item descriptions 
• Added simple score mechanic
• Fixed stage 5 background bug
• Tweaked damage slightly to be more forgiving
• Nerfed the Lemon a bit
• Buffed damage and cooldown of amulet
• Buffed cooldown of orbs slightly
• Increased pickup radius of tractor beam
• Reduced the speed of some bullet patterns
• Added persistent options
• Added XP multiplier option to make the game easier/harder
• Holding shift will stop you from firing.
• Space bar now fires the charge shot.
• Linux version
• Added secret metal slimes