adds 5 variants of spiders
-Hammer Head spider: longer reach, more damage, same size as reg spider
-Pogo spider: can jump towards player, makes pogo sound, can jump really far
-Bomb spider: like bomb from sewers mixed with spider
-Baby spider: faster, but smaller than reg spider, does less damage
-Thorned spider: slightly smaller than reg spider, gives a sort of poison effect (does damage over time)