New Arena, Health System

Demo version 0.4 changes:

• A new arena where you will have to fight 2 enemies at the same time
• Tweaked enemy AI
• Tutorial - opens at the beginning of the game and is required to beat as it explains the nuances of item handling and health system
• New Health System - entities can now die in 2 major ways: by bleeding out and by being strike with an attack. When entity's health reaches a certain threshold it'll start bleeding. At this point strikes may just kill the entity or make him bleed out even more. The lower the health the greater the chance of a critical hit (killing the entity) and the greater the chance of bleeding randomly out and dying