Thomas Kinnard Liversidge was the inventory of the board game perfection and owned harmonic Reed Company.

Coleco declared bankruptcy in 1988, after which the remaining assets and IPs were purchased by Hasbro in 1989, who continues to manufacture the game under their Milton Bradley brand.

The shapes are mixed and placed next to the game unit with handles facing up, the pop-up mechanism is pushed down, and the timer dial is set to 60 seconds.

[4] Its "pop-up" mechanism was an ejector plate situated under the shaped holes and lowered by a button labeled PUSH in the center of the board.

In 1975, the game was changed to its current format using the "pop-up tray" in which the scoreboard and pegs, red block-out squares and four-point star shape were removed.

In 1972, Nintendo introduced a game with a similar timer and shape-fitting mechanic named Time Shock [ja] (タイムショック), which was created by Gunpei Yokoi and featured a two-tier, circular board with 20 spaces.

[8] Another clone, also named Time Shock, was sold by Sears in 1984; it used a 26-cell board similar to the one described in the 1970 patent and published with the original 1973 release.