Image provided by: Psilocybin DevelopmentXump, a puzzle game, by Psilocybin Development has been ported to the Dreamcast by GPF. Concept: The game consists of a 20×12 playfield which is filled with various types of blocks. Your job is to make the blue blocks disappear from the playfield by stepping on them. There are five main types of block, where each of them will behave differently.