Strategy Informer: "Zeit² (which is pronounced Zeit Squared, for your information) is not your typical side-scrolling shoot em-up. While classics of the genre like the R-Type and Gradius series are known for being hard-as-nails twitch fests, Zeit² opts for a slower, more methodical approach that makes use of a Braid-esque time travel system. On paper this amalgamation of concepts is actually fairly unique though in practice it doesn’t quite mesh together."
10 Shmups That Deserve More Attention
A look at the indie game Zeit², :a neat little entry into the world of schmups."
Is Zeit pure Zeitgeist?
Here is a snippet:
"Lack of story aside Zeit² brings a lot to the table. Numerous mechanics litter the game layered on top of the usual avoid/shoot gameplay of similar titles. Most striking among these is the time manipulation, which allows time to be fast forwarded or reversed using the trigger buttons. While the forward power is primarily used just to amass extra points (scores are higher when time is accelerated) the reverse ability introduces a great deal more and is essential to successfully navigate the game."