Via the Sonic 20th Anniversary Twitter, SEGA Japan has revealed the back covers and thus the full track lists to both editions of the Sonic Generations History of the 1st Stage Original Soundtrack albums.

The Blue Edition (3DS) contains:

1. SEGA call
2. Mushroom Hill Zone
3. Toxic Caves
4. Botanic Base
5. South Island
6. Seaside Hill
7. Leaf Storm
8. Plant Kingdom
9. Metal City
10. Sand Oasis
11. Camelot Castle
12. Tropical Resort

The White Edition (Xbox 360 and PS3) contains:

1. SEGA call
2. Angel Island
3. Splash Hill
4. Palmtree Panic
5. Green Grove
6. Resort Island
7. Emerald Coast
8. City Escape
9. Westopolis
10. Forest Falls
11. Wave Ocean
12. Windmill Isle – Day

You can get these albums by pre-ordering Sonic Generations at Amazon Japan.
PS3: ￥ 5,946 (with Original Soundtrack White Edition)
Xbox 360: ￥ 5,990 (with Original Soundtrack White Edition)
Nintendo 3DS: ￥ 4,242 (with Original Soundtrack Blue Edition)

In other news, HMV Japan has revealed 4 tracks for the Sonic the Hedgehog 20th Anniversary Best album.

1. Sonic Drive
2. His World
3. Endless Possibility
4. Reach For The Stars

You can pre-order the Sonic the Hedgehog 20th Anniversary Best album at HMV Japan for ¥3,500. We’ll let you know when more tracks have been revealed.

Sources: SEGA Japan’s Sonic 20th Anniversary Twitter and HMV Japan

Thanks to Rabid-Noodles and Hogfather for the heads up!