A review of Episode 4 is incomplete without addressing the drastic tonal shift between versions:
A straightforward, somewhat somber horror-adventure for children focusing on grief and bravery.
Transformed by ADV Films into a dark comedy/parody. In this version, the characters are remarkably nonchalant about Satsuki’s impending death. Much of the humor is derived from fourth-wall breaks, such as characters mocking the animation quality or the "mercilessly slow pace" of the ghost's music. Critical Analysis Public Domain Soundtrack - TV Tropes