Zeit² is a traditional side-scrolling, 2D, shoot-’em-up game with a unique gameplay mechanic that allows players to move forward and backward in time, making it possible for the player to combine shots and power, and even be assisted by a shadow version of the player.
The game features seventy challenges and eight bosses, as well as six game modes, including Score Attack, Survival, Wave, Time Limit and Tactics.
As explained by Paul Russell for the 2002 reissue, "Zeit, which means 'time', was based on the philosophy that time was in fact motionless and only existed in our own minds." And concluding, "Without doubt Zeit is a Krautrock master work still capable of surprises without having to shock. The album which took the band to the edge of international recognition, still sounds timeless 30 years on."
Music critics often refer to Zeit as being one of the first (or perhaps the first) examples of dark ambient music.
The song is a ballad, written and composed by Ralph Siegel and Bernd Meinunger, with Shomburg expressing her regret at "time running through my fingers" and her desire for just a bit more time - with the implication in the lyrics being that this would save a relationship. Shomburg also recorded an English version of the song, entitled "Time".