Push!

Space restarts, guys.

Real fun game, I got addicted =P And if you play it with proper external lighting there is really no trouble telling the different forms for floor from one another. Sure it resembles many other games (even to a suspicious degree?), but it's still a good game. For once you actually get what the description tells you: "an easy-to-learn puzzle game with simple rules and great variety." This game does not get repetitive at all, at least in my opinion, and it's an excellent time-killer (or history class-killer if you like =P)!

If you push two blocks together it produces a sound in Half Life 2, when you pick some life

This could be a good game, nothing special but good. though No replay button makes it annoying.

The box pushing game is so old that it's not a rip off its a genre of games now. Get over it folks. The fact that it is impossible to tell the difference between floor, weak floor and hole is, however, very bad.