Sonic in Palmtree Panic.
It is a tropical region with sharp mountains and waterfalls in the background. Hence the name, palm trees adorn the region, as well as star-shaped plants that seem to litter the tropic coast.
The past features a more prehistoric coast as if in the BCE era, with short, purple mountains and a turquoise sky. Palm trees may even or may not share a light bulb-like feature on top. Where the star-shaped plants would be there are instead vine-like growths sprouting from the ground.
The bad future has been completely mechanized. Palm trees are mechanical, but are broken down and feature an ominous red light glowing in each center. The star-shaped plants are also mechanical, but they are rusted, broken up, and share the ominous glowing that the palm trees have. The air has been polluted by smog just as the waters have been by oil.
The good future is also mechanized but is bright, vivid, colorful, and clean. The star-shaped plants and trees are both mechanical and seem to act as water transporters. Many plants adorn the area as well, and the region seems to be entirely water-powered.
- In other continuities, such as Sonic the Comic, this area was known as the Palmtree Panic Zone so as to be more consistent with other similar areas.
- This is the first zone that Amy Rose appears in on a game.
- With debug mode enabled, if the player goes below the boss arena after defeating the boss, 3 monitors are present, not normally obtainable, and two of them are unused. There is an extra life, the infamous "S" monitor, and a monitor with a timer on it- the "S" gives Sonic invincibility and super speed, and the timer freezes time and all objects for a few seconds, similar to Team Dark's Team Blast in Sonic Heroes.
- As with every other stage, the US and Japanese music for the past is the same track.
- Palmtree Panic, like many Genesis-era Sonic game first levels, is remniscent of Green Hill Zone.
- In Sonic & SEGA All-Stars Racing, the music that plays in the stage's present time can be played in the Seaside Hill racetracks; however, it's based off of the Japanese version.