The Playable levels are Hidden Valley (Full zone), Techno Nightmare(Full Zone), Winter Fallow (1, boss) The world Map(Unknown Temples), a city level with a library and hotel which i wont name, multi season zone, some race levels, and 3 special stages.
Zones:
Hidden Valley:Act 1 is a kinda short level, and is mostly platforming, another thing to note is that is has an incomplete 2D path at one point.
Act 2 is a pretty good level, that starts with a nice looking beach, with some cool crab enemys, it also has dark tunnels, and one of those "Destroy all enemies to open the door" rooms.
Boss:Just a generic boss battle, it takes place near a waterfall.
Techno Nightmare:
Act 1 is your generic factory level, it has some interesting things, (in one part theres a puzzle in which you push a cube onto a switch) it also includes a very small 2D part.
Act 2 looks really bad in some areas, has a sigsev problem and is possibly incomplete, but i dont know because i got to the button shown on page 4, and it sigsev'ed. (UPDATE: It IS complete, i got past the sigsev) It also has a very small 2D area, and a climbing part that sigsev's at the top when you dont fly up.
Boss:Its just a small arena in some chemicals, and it doesnt have a boss, just a popping balloon object.
Winter Fallow:
Act 1 is nothing interesting, just has a few snowmans and ice platforms, theres also not an ending sign, and its really incomplete.
Boss:Its a wide arena, with campfires and a circle of igloos, it has the deep sea boss underwater, but the waypoints are missing, very incomplete.
Earthquake mines is just castle eggman with a different sky(for when the level is made?)
Digital Ruins is also just arid canyon, but with random objects, such as bush's, cartons of milk(for the city level), and a different sky.
Multi-seasons:
Act 1:Its a good looking zone, but it is short and doesnt have an ending, whats interesting is the use of mushrooms as springs and the walking flower enemy(which is glitchy and crashes the game when killed).
It also claims to have an act 3, but the map isnt in.
Dusty lands isnt implemented at all.
The Egg Flagship zone is just egg rock, but act 2s level select picture shows a cyberspace looking level.
The city level has a cool library, a cafe, and a hotel. It is also very incomplete, as it has some missing textures, no music, there are balloons and a mushroom spring in the street (for testing maybe?)
Unknown Temples(world map) is as far as i can tell like the screenshots in page 1, but the ice area only has one spike.
The special stages:
3(?) for some reason the special stages start at map53, instead of 50 or 51. Anyways, this stage is a "Run on these platforms, avoid the obstacles, and make it to the emerald" stages, it also has these cool checkered balls floating around the platforms.
4(?) is a a maze stage, i honestly cant find my way through it, so nothing much to say.
5(?) is a maze too, but theres even more paths and its really confusing, so nothing to say either.
The Race stage's, theres a level that sigsevs after a few seconds of playing, and the white house level claims to be in, but isnt.
Screenshots: