Updated version

I decided to make another updated version of my game.

Changes:

1. A sound effect plays when armor breaks
2.  The melee attack no longer pushes enemies
3.  Character now blinks during i-frames 
4.  Normal mode level transitions looks somewhat better
5.  You are able to play hard mode without beating normal beforehand
6.  Beating hard mode no longer makes you unable to play the game
7.   You are able to return to main menu during the intros of normal and hard, and during the gameplay of local multiplayer
8.   Phantom miniboss' attack hitbox has been reduced in size
9.  Final Boss now has a hitbox if you touch him
10.  Final Boss should use two attacks in hard mode

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