Formerly called "Rejects," PRAHBLUM PEAK is the set of maps I culled from Underworld as I built that pack up to its glorious state. These aren't necessarily that bad, and I'm putting them online because there is (or was, at one point) a demand from some fans of my levels. These were usually the cheap players who loved how horrible the balance was, but I still appreciate their support. The README goes into pretty good detail for every level.
PP 304f6855 has six levels.