If you like platform puzzle games, or games that play with the nature of the virtual universe, then check out this game. For a free demo, try the older Flash version (all levels are different) at <http://www.newgrounds.com/portal/view/480006>.

An atmospheric puzzle platformer; you must make your way across eerie landscapes as a young boy, not an action hero. Each area (progress is autosaved and death returns you to a recent checkpoint) presents a new kind of puzzle, often elegantly building on elements you learned previously. You will probably encounter an instance of Your Least Favorite Mechanic (for me it's jumping-and-running to beat a just-long-enough timer) somewhere in this game, but once you get past it you'll be doing different things.

An inventive and elegant puzzle platformer. Each room is its own puzzle to complete at once, but the path you take to enter it matters; all the mechanics introduced are used thoroughly and in combination to excellently brain-twisting effect. I recommend the demo at <http://www.theoddmanout.net/games/1000AmpsDemo.html>; it represents the full game well except in lacking the later, more intricate puzzles.