- "Aqua Planet" redirects here. For the Sonic X-related novel, see Aqua Planet (Grosset & Dunlap book).
Aqua Planet Zone is the fifth Zone of Sonic Chaos for the Sega Game Gear / Sega Master System, coming after Mecha Green Hill Zone and preceding Electric Egg Zone. In keeping with the other stages of this game, Aqua Planet consists of two standard Acts followed by a shorter, third Act which contains the boss. Geographically, this Zone is located on South Island (as is the rest of Sonic Chaos).
Why it's called Aqua Planet is something of a mystery; but it's certainly aqua, with underwater sections aplenty - reminiscent of other underwater-themed levels in the series. The Zone consists of crumbling, half-submerged ruins, from which ruby-tinted offshore oil rigs can be glimpsed in the background. Aqua Planet is a stormy Zone too, as the roiling clouds will attest.
The water in this Zone is not very deep, but it holds tunnels blocked by doors. When Sonic or Tails push these doors, they will be sucked in by the currents and carried over to the other side. The underwater sections are also filled with protruding spears like those seen in Labyrinth Zone, and the infrequent air bubbles. Like in Aqua Lake Zone, going fast enough when curled up in a ball will allow Sonic and Tails to skim across the surface like a stone.
|Dive into an underwater quest with fierce currents and treacherous tunnels. Hold your breath and grab air bubbles to survive. Countdown numbers appear over your head to warn that you're running out of air. The Sphere-o-Bot Boss awaits.
— US Game Gear version manual
|Push open the hatches in the underwater tunnels and the current will carry you along, but beware of the traps ahead! If you go without air for too long, you'll see a countdown above your character's head. When that count-down reaches zero, you lose a Life. Replenish your air supply by jumping to the surface or taking a deep breath from big air bubbles that drift up from certain blocks.
— EU Master System version manual
|A strange water planet. There are bizarre crawling creatures. Whilst in the water, don’t forget to breathe.
— JP Game Gear version manual (translation by greenyvertekins)
|Mecha Hiyoko — Tiny bird Badniks found in groups of three. Also used as projectiles by the Sphere-o-Bot.