jk-ware Theater is a playful PC testing application containing three games, Blocker Plains, Color LIFE Sound and Perpetuum mobile, that can be run simultaneously to evaluate PC performance. Each game can be re-sized to display at the full screen resolution, or they can be arranged in a side-by-side format or in other overlapping or stacked formats. The selected arrangement can be saved to the later recall as configuration. Blocker Plains is a reaction game with six levels, an unlimited number of balls, 50 stone plains and a freely movable Blocker. The objective of the game is to move the Blocker to manipulate the balls to clear away the stone plains. The blocker size, the size and speed of the balls and the ball gravity are changed variably through the game levels. High scores are stored in a Champions list. Seven captivating sound themes and changing backgrounds makes Blocker Plains a fun experience. Six players can simultaneously participate in the game. Color LIFE illustrates the reproduction behavior of microorganisms. The reproduction rules, the incremental width, and the output time of the generations can be independently selected. Color-palettes can be produced on your own. With a shape-run, new rules and nice graphics can be found. Color LIFE Sound plays the cell pattern with 3D-Tones. 24 sounds from four different sound themes can be selected. The area size, the bar and the volume is variably adjustable. Universal settings can be saved as file. Perpetuum mobile highlights continually moving and rotating balls. Up to 500 balls can be shown at one time. The ball movement can be selected to follow gravitation rules or be manipulated impulsively. The spectator position can be the screen, the middle of the room, on a ball, or on an elevator. Hereby special visual and acoustic effects come to the validity.