What is "quedex"

Quedex is the third game developed by Finnish game programmer Stavros Fasoulas. It was released on the Commodore 64 platform in 1987 by Thalamus Ltd. The game consists of ten planes where the player steers a silvery ball and must find an exit square in order to leave the maze-like play-area. The ten levels can be played in any order the player chooses. The game contains features and challenges such as jumping, going through teleports and finding keys that open gates. The name Quedex derives from the subtitle "The Quest for Ultimate Dexterity".