140 is a cataclysmically colorful platformer where you play as a black shape advancing through a set of three pulsating, undulatingly cheerful yet frustrating levels. The game requires you to jump and roll your way through a series of timing-based challenges, all of which are set to the throbbing, toe-tap-worthy beat of the game's Electronic Super Joy-esque soundtrack.
Your goal throughout each level is to collect dual-colored orbs and then return them to various checkpoints. Each returned orb causes the level to fluctuate, activating moving panels and changing the game's color scheme. To collect each orb, you'll be faced with moving blocks, grey-matter platforms that kill you on contact, and tricky tests of your ability to time impressively challenging jumps. However, the levels provide plenty of checkpoints, saving your progress before each threat you face.
The end of each level features, like most games, a boss. The boss levels of 140 are the only times when your otherwise peaceful shape is armed with a weapon: a beam that shoots out of your shape automatically in time to the music's beat. Boss levels are long, creatively designed levels that require you to avoid projectiles while also correctly timing your attacks, making them often frustrating (but, in the end, rewarding) moments of the game.
The only noticeable downside to 140 is its astonishing lack of true save points. While there are several checkpoints within each level that you can return to when you die, exiting out of the game entirely will cause your progress in each level to be lost. Therefore, each level must be beat in one sitting, otherwise you'll simply have to start completely over next time you come back to the game.
Despite this, the game is both fun and challenging and, if you manage to make it through all three levels, the end will unlock three extra bonus levels that allow you to play the first three levels backwards without checkpoints. This added challenge adds a few extra hours of gameplay—I have to assume, since I've never been skilled enough to play the bonus levels!