Sonic the Hedgehog Pocket Adventure
Chaotic Space Zone is an extra Zone of Sonic the Hedgehog Pocket Adventure. The Zone features the last confrontation with Dr. Robotnik in the game, as he escapes to a large, bulky robot, which has a small resemblance to the mech from The Doomsday Zone from Sonic & Knuckles. Sonic must have the seven Chaos Emeralds to access it.
This Zone plays similarly to The Doomsday Zone from Sonic & Knuckles, even featuring a similar mech. It begins with the player having fifty Rings. While normally playing as Super Sonic, the player has to collect Rings from the extra Zone while at the same time battling the mech. If the Ring count reaches zero, Sonic turns back to normal and falls into the atmosphere, losing a life. The boss moves up and down, shooting missiles in different directions, which Sonic must dash into to reflect them onto the mech. The mech also shoots small sparkling projectiles all around the Zone, which the player has to avoid. Otherwise, the projectiles will stun Super Sonic for a while until the player regains control of him.
After destroying the mech, Super Sonic delivers a final attack to Robotnik on his Egg Mobile, which falls down while exploding. Super Sonic then flies down to Earth, lands on the Tornado's wing and turns back to his regular form. All seven Chaos Emeralds start rotating around him and disappear on the screen with a white flash.
- The music for this particular Zone is a remixed version of Sky Sanctuary Zone's music from Sonic & Knuckles.
- After clearing the Zone and showing the results, the game plays the fanfare music from Sonic the Hedgehog 3.