A small submarine was tasked with lowering it to maximum depth to conduct research in Deep Orbit. The problem is that the deepest place in the ocean was chosen. The boat is experimental, the depth was chosen deliberately to test how diving is possible. The submarine moves briskly, and you will have to deftly control it so that the boat does not crash into the obstacles that will appear at each level. The task is to reach the conditional finish, which looks like a dotted horizontal line in Deep Orbit.