-decreased a little the loudness of the music

-added the music from the original game of the boss (can be disabled with mod config menu pure if you don't like it)

-changed the name of one entity to avoid confusion

-added a new champion for this boss
-fixed the normal version of the boss shooting red lasers instead of dark lasers
-fixed the boss not working correctly if you defeat it and spawn again in the same room

-the value that determines that the boss will be champion now resets if the boss is not present to avoid possible problems if somehow you find this boss in your run more than once

-added a champion version of the boss

-dark matter has now a great resistance to damage while preparing to fully appear
-removed the item that it spawns when it dies in a boss room

just a small update to the explosive balls sound effect to avoid inconsistency

the balls of dark matter now also collides with player objects

dash sound of dark matter is less loud now