Neon has a certain glitz to it. Whether it's glittering in the lights of Las Vegas, shining in the sign of a convenience store, or just brightening up the periodic table, neon always adds a little extra to everything it touches. It was only a matter of time, then, before someone mixed the brilliance of neon with the brilliance of puzzles.
In Neon Layers, you must guide a ball from its starting platform to the glowing exit by cueing and cutting power to three sets of "neon layers." The red set is activated by the 1 key, the green by 2, and the blue by 3. Only one set of layers can be turned on at any given time, however, and it's up to your ingenuity and timing to manipulate momentum and bounce the ball to the goal.
To complicate your quest further, gravity switches are scattered about the levels. These switches reverse gravity when the ball passes over them—but only when power to their color set is on. As the levels go on, new obstacles will try their best to foil you, and only the most skilled will complete all 25 levels.
Analysis: If there's one word that describes Neon Layers (beyond "neon" or "layers"), it's solid. The physics are well-programmed, the levels are well-planned, and the music is well... good. The puzzles are difficult at times, but not impossibly so, and there's enough variety to keep you going through all the levels.
The only major quibble is the keyboard control system; while mouse control is available, the rapid pace of some puzzles makes it infeasible. It takes a bit of time to cement the button assignments in your head, but once you do, you won't look back.