Sonic the Hedgehog 2 (8-bit)
Crystal Egg Zone (クリスタルエッグ  Kurisutarueggu?) is the seventh and last Zone in the Master System and Game Gear game Sonic the Hedgehog 2. As with all other Zones in this game, Crystal Egg Zone consists of two standard Acts followed by a shorter, third Act which contains the Zone's boss. It can only be accessed if the player has successfully collected all the Chaos Emeralds in previous zones; otherwise, the Bad Ending will follow the defeat of Silver Sonic in Scrambled Egg Zone.
Crystal Egg is perhaps the least aesthetically offensive of all the final bases Dr. Robotnik's constructed over the years; a zone of glassy, translucent architecture where even the spikes glow in rainbow hues. Blocks embossed with Robotnik's pugnacious visage frequently conceal hidden walkways.
With his final machine destroyed, Dr. Robotnik makes a hasty retreat down an escape chute. Sonic gives chase, but not quickly enough to stop the doctor escaping via teleporter. Just as the hedgehog thinks all is lost, Tails warps in through the teleport terminal, released from Robotnik's grasp.
The game's last boss battle takes place inside a lightning chamber, which Dr. Robotnik makes extra-fatal by throwing gyrating, flower-shaped energy bolts into the mix. However, the boss actually is not that difficult if the player stays inside the transport chutes until the chamber clears; at which point they can leap out, attack Robotnik, and dive back in to safety before his attacks renew themselves.
|Crystal Egg Zone||Masafumi Ogata, Naofumi Hataya, Tomonori Sawada||2:18|