Kollon

Kollon (ころん) (titled Ultimate Block Party in the United States, Koloomn in Europe) is a 2003 Arcade puzzle game developed by MagicPot and published by CyberFront.

Kollon arcade cabinets were exhibited at the 2004 Tokyo Game Show, alongside videos of a prototype of the PSP port.

[8] Official UK PlayStation 2 Magazine stated that while a good game, Koloomn isn't "as polished" as Lumines.

[8] IGN gave the PSP version of Ultimate Block Party an overall score of eight out of ten, praising its variety of game modes, its 'complex' and difficult versus mode, and its fast and "hectic" gameplay, further expressing that the game's pacing is "amazing" and achieving combos feels fun and rewarding.

IGN further praised Ultimate Block Party's art style, calling it "cute and blindingly colorful".

The player must match at least four blocks of the same color to remove them, while new rows of blocks rise from the bottom of the screen.