Sunset Park Zone

Sunset Park Zone is the second zone of Sonic Triple Trouble for the Sega Game Gear. As with other stages in this game, Sunset Park consists of two standard acts followed by a shorter, third act which contains the zone's boss. The zone comes after Great Turquoise Zone and precedes Meta Junglira Zone.

Overview
Sunset Park is a multi-story railway, basically; possibly serving as some sort of transportation hub for Eggman's nefarious schemes. Ladybird-like badniks patrol the rails in Spin Coasters, which Sonic or Tails can expropriate after destroying their robotic occupants. Vertical wind turbines siphon power from the ocher air's breezes, although you have to be careful around them; while the towers won't damage you themselves, they will knock Sonic or Tails out of their spin attack, leaving them vulnerable to other hazards.

Boss
Sunset Park Zone's boss is one of the most popular from any 8-bit Sonic game, largely because of the background music. Instead of facing Sonic and Tails himself, Eggman deploys larger, tougher, nastier badniks as boss robots. After passing the Goal Post of Act 2, Sonic ends up standing on top of the cargo containers of an immense robotic train. This leads immediately into Act 3, when the train departs. Automatic scroll kicks in, and the player must race along the back of the moving locomotive, leaping between cargo cars and dodging waves of flying Bombaberry badniks. Eventually, the player reaches the front car, and has to smash the train-bot's engine while dodging shots from the rear-facing cannon.

Trivia

 * The boss' name comes from "shupo-shupo", the Japanese onomatopoeia for the sound a steam train makes.
 * The very popular music for Sunset Park Act 3 was in fact an unused track from Sonic Chaos, and is accessible in that game's Sound Test.