This is actually the hardest achievement in the game, since there is no real way to give yourself an advantage. You need to pass the level without losing a life, collecting all balloons and getting the secret star and finishing in under a minute. Levels one and two are easy to pull off, but level three is a real pain. A mistake free run will take about 50-55 seconds, so you don’t have much margin for error. Avoid doing an extra circle of the grabber, avoid back tracking, and if you are moving to a grabber below you or moving down a ramp, use the left or right arrow keys to move faster. You might even find it best to reverse the grabber rotation and release, using the arrow keys alone for movement in some cases. This will come down more to practice (or luck) than anything.