-perfect freeze is now more colorful
-fixed projectiles that are very close to the ground during perfect freeze still falling to the ground while they should be frozen
-increased a little the difficulty of the hailstorm attack

-added two new bosses

-fixed a bug with the flame of enuo that could not trigger the boss fight properly if it's killed by freeze
-decreased the chance of enuo, super mecha sonic and black rabite to appear

-moved the score of the tank challenge

-halved the speed increasing of the tanks on the challenge

-added more difficulty to the tank invasion challenge

-fixed on the challenge the tanks being spawned only on 2 corners instead of all 4 corners

-added a new boss and a custom challenge around the new boss

-increased a little the volume of the space invasion music

-just a small fix for the missile sound effect