This is heavy on the "Pain" aspect of the title. The high frequencies are piercing, designed to grate on the ears, but the "Pleasure" comes from the intricate drum programming. There is a rhythmic logic buried under the noise. If you can sync your brain to the frantic tempo, the track reveals a hypnotic, almost manic energy.
Here is the cruelty of v0.3: The Pleasure Node is a lie. Upon reaching it, the screen glitches, the audio distorts into a child’s laugh, and the text reads: Pain And Pleasure -v0.3- -Smasochist Lain-
The game’s most harrowing line appears after your 50th reset: This is heavy on the "Pain" aspect of the title