[prawks]

In the demo, you could never fully "pause" the game. Even when you stopped moving, everything still moved, just very slowly.

The game most definitely turned into a puzzle in the same way that Braid's levels were puzzles. I can't see how you could say it was anything else.

IMO, the demo was a blast. If they made 30 more levels like the demo, I'd buy it. Adding grenades, swords, and interesting level designs is more than enough to warrant a purchase.