V2 Update:
Added music to the game. (original sources can be found in the description)
Added controls in the description.
Added a final boss and an ending.
Replaced 'Run' with 'Heal' and is fully functional.
Fixed some UI bugs.
Fixed broken invisible walls.
Changed the goblin slightly. (Level scaling)
Added a possible way to lose.
Added a Starting and Game over screen.
Nerfed the mage's attack from 20 DMG -> 15 DMG