WcropoliX

{{Infobox Level|creator = BlassCFB, Marpha, Mero, verified and published by BlassCFB|sequences = C, W, w, W, S, U, u, W, w, W, S, C, U, C, W, w, c, s, W, w, W, w, S, W, w, b, S, w, G, W, C|portals = Gravity, Size, Speed|stars = 0 (10* if rated)|id = 22183448|song = Fracture|composer = Rukkus (NightKilla)|created = October 20, 2011|difficulty =  Insane ( Extreme Demon if rated)|image = {{File:WcropoliX.png}}

WcropoliX is an extremely hard, yet unrated collaboration created by BlassCFB (who also verified it), Marpha and Mero. It is mostly known for its extremely hard timings and extremely tight ship and wave sequences.