Lots of changes to everything! More options for the player!

POTIONS:
The "SHIFT" ability has been replaced from a level requirement to an "ammo" requirement. Buying/Finding potions lets you use these now more powerful attacks.

MEAT:
You can find health much more abundantly in the form of meat!

SHOP:
There is now a store in between levels. This is where you can heal and buy stat boosts.

LVLS:
Leveling now happens at the end of each level.

BONUS XP:
Bonus xp is given at the end of each zone for:
1. The hero that was first picked.
2. The hero that had the most kills/
3. The hero that breaks each Super Stone.

Balance will still need some touching up.

BUGS:
No more spawning in walls!
Fixed a few stability issues.