When I try Mushroom Noise, the premade code is wrong "TypeError: cannot read property 'type' of line defined" The premade line was: hero.attack(skeleton);
You have to define what skeleton is.
I reset the level and could not duplicate what you’re talking about. Skeleton is defined by the initial, preset code and I get no error unless I comment out that line.
I had the same result as MunkyShynes, but you could just define skeleton yourself and that should work fine.