Professor Heinz Wolff's Gravity for Nintendo DS Reviews by Gamers

Gravity takes a line from games like crayon physics and wold of goo to create a physics based game. The object: to press a button. Pressing A will drop an object (ie: ball or cart) from a port on the map, pressing A again resets the map. You are giving a limited number of objects to use and manipulate to achive your goal. The concept is quite engaging but a few design flaws keep this game from achiving perfection.
Bugs are apparent throughout gameplay and, while annoying, don't completely destroy the playing experience. My major complaints would be the inconsistant physics (sometimes letting the ball fall a few times on the exact same structure will yeild different result) while marginal, the differences can be the difference between success and failure. On a few occasions I encountered objects with invisible parts making manipulation quiet....frustrating. Lastly, as stated before, pressing A should reset the map and thus restore the structure you previously built. On a few occations, my precariously stacked boxs (which were solid enough at round start) would start to lean and fall seemingly by themselves.
Playtime will vary but the 100 puzzles are good for at least a minute per (much more for the tedious ones)
If you are willing to forgive the oversights and are into these types of "build your own contraption" type games, then definately rent this game.

Bad game, couldn't even seem to hardly get started.