The figure moves in a constant up-and-down wave-like motion throughout the level, which is the most distinctive feature of space waves. To move the character through the very small spaces that regularly arise throughout the route, players must grip and release the controls with remarkable accuracy. In addition to having fast reflexes, this gaming demands a highly sensitive sense of movement. The character may instantly run into walls or sharp spikes if the motion is too powerful or too sluggish in a short amount of time. Every instant of the encounter is very stressful due to this vulnerability. Instead of responding erratically as they did at first, players eventually learn to control more fluidly and start to sense the flow of movement. 素晴らしいゲーム！