Timing is everything in this seemingly-simple game of jumping over crates. In each level, you automatically move along platforms stocked with crates of different sizes. If you run into a crate, you explode, so it's important to jump at just the right time. Some crates are floating in the air, and you have to make sure you're back on the ground in time to move beneath them. Some crates are positioned so close to one another that you have to jump again the second you hit the ground after jumping over the first crate. Keep jumping and pay attention to the hints given in the text on the screen as you play to see how far you can get.