Version 0.2.1

Hello there!

I'm back with another set of improvements to the game, I'll list every one bellow:

• New Enemies: this thecnically is not from this update but I want to register here because of the fixes and changes in them.

        Number 1 is the black spider. This monster will appear in the 5th level mark and the spawn rate will be doubled in the 10th level. Is a mid tier monster (for now) and has some big damage but the health is pretty much the same as the Green Slime.

The next one is the Big Skull, it will appear from level 10 beyond, the spawn will double in level 15. This one is a really tank one with some high damage, but the spawn rate is not as high. 

• Monster Scalling: Now the monsters have a scalling heath and damage values based on the player level, is a balancing attempt.
• New Background: I've update the background tile, it was too much gray so I've added a little bit of color and resized it.
• New Collisions: The collision system is now updated and done poperly, no more overlapping enemies.  A comparative of the old system:

And the new system:

• New Upgrades and stats: Armor and Healing Multiplier are now online boys. The ARMOR stat will reduce the damage you take by a fixed amount and never reduce the total damage. Final Damage = Damage from monster - armor. If armor >= Damage from monster, final damage = 1. Healing multiplier is a way to increase healing sources, both from potions and level up upgrade (except regeneration per sec).
• Music: The game was a bit silence so I've added some temporary background music.
• Performance fixes: now the game runs more smooth, the enemy spawner was lagging so much but now it's fixed (I hope)

That's it for today, I hope you guys can get some fun out of this game, bye!