As for multiple routes, there are a number of secret areas hiding power-ups around the maze, but the only real choice of route you get is in Act 3. All the paths underground are made up of perfectly straight brick surfaces, though the steps in the vertical sections can get fairly small in places. You'll also have to make your way up steep steps that are cut into the walls, but be very careful of large crushers that drop by chains from the ceiling, in the open vertical passages. The more open areas inside usually contain a long pool of lava at the bottom that you'll have to be careful of, when hopping across platforms above it, or riding on a small block that floats along. You'll be heading back and forth through narrow, compressed corridors, positioned to create an intricate path of tunnels that weave up, down, left and right between each other. Down in the dungeon though, the level becomes nothing short of a large, complicated maze. There can also be the occasional steep slope now and then, and bumpy terrain throughout the stable areas.

The level design up on the open surface pretty much only takes you right, along the ground, and with several pools of lava to leap over. Dotted around the foreground are various large greenish pillars and ruins, some still standing straight, others slanted and slightly crumbled. The ground everywhere is a very basic purple brick pattern, with grass on the surface of the outside areas. The closer background walls in this spooky hangout are lined with simple bricks, but more open areas in the dungeon also contain torches, more pillars, paintings of weird symbols, and black windows with bars over them, all dotted around the walls. This only accounts for the very top of the stage, as the rest of it takes place beneath it, in a massive dungeon with a distinctively purple colour scheme. There are various tall ruins and pillars poking out of the forestry, left by a forgotten civilisation. In the background are high, purple-coloured mountains, behind a forest of pointed fern-trees, positioned at our eye-level. This is the Ancient ruins section of the level, and every act starts and ends here. The unusually short-named Marble Zone starts outside though, and the weather is fairly misty and cloudy up there, but it appears to be daytime, still. Again, the exact opposite to Green Hill's highly influencial style. Far removed from the happy surroundings of the Green Hill Zone, the second ever level in Sonic history is largely based on a design that has barely been touched since a dungeon.

How to play sonic windows zone