Here's a new track for so called, Sonic Ultra-Mega Collection. With every single OST made in the track.

Here's all the tracks:

Sonic Isolated

Sonic Utopia Unlimited: Rebooted

Hanging Around With Music

Sonic Utopia Unlimited: Rebooted BONUS

Sonic Re-Arranged

Sonic Eternal 2

Hanging Around With Music 2

1. Sonic Isolated

01 Title Screen "Midnight Magic"

02 File Select

03 Isolated Mountain Zone

04 Techno Field Zone

05 Hot Base Zone

06 Night Waterfall Zone

07 Starlight Solstice Zone

08 Atomic Crystal Zone

09 Diabolical Highway Zone

10 Techno Mechanical Zone

11 Raging Factory Zone

12 Minor Boss (Act 1)

14 Final Boss

15 Credits - "Von Holst"

16 Major Boss (Act 2)

17 Good Ending

18 Bad Ending

19 Bushel Ridge Zone

2. Sonic Utopia Unlimited: Rebooted

Title Screen - "Rebooted Rally"

Shrine Park Zone

Daring Dash Zone

Barren Wasteland Zone

Star Canyon Zone

Data Select - "Time to Select"

Twirl Trouble Zone

Horizon Hassle Zone

Wilderness Winter Zone

Battle Bark Zone

Final Big Beatdown

Mini Boss

Striking Hangar Zone

Run Through The Clouds

3. Hanging Around With Music

Clear Mind (Peace of Mind)

Ornithophobia (WIP)

Ornithophobia (Remixed)

Ornithophobia Vol. 5 (Full Theme)

In And Out The Darkside

Dementophobia (cambi) - WIP

Unnamed Pain - (WIP)

Raising Grotto - [Mystic Cave Remix]

Collab Mania

4. Sonic Utopia Unlimited: Rebooted BONUS

Cherry Hill Zone

Boulder Boiler Zone

Radient Meltdown Zone

Raining Hangar Zone

Lost Ruins Zone

Data Select

Jewel Falls Zone

Shadow Shrine Zone

Snow Lake Zone

Poison Gizmo Zone

Flying Rocket Zone

Final Base Zone

5. Sonic Re-Arranged

Isolated Mountain Zone - Sonic Isolated

Run Through The Clouds - Sonic Utopia Unlimited: Rebooted

Star Canyon Zone - Sonic Utopia Unlimited: Rebooted

Barren Wasteland Zone - Sonic Utopia Unlimited: Rebooted

Poison Gizmo Zone - Sonic Utopia Unlimited: Rebooted BONUS

Shadow Shrine Zone - Sonic Utopia Unlimited: Rebooted BONUS

Shrine Park Zone - Sonic Utopia Unlimited: Rebooted

Starlight Solstice Zone - Sonic Isolated

Wilderness Winter Zone - Sonic Utopia Unlimited: Rebooted

Data Select - Sonic Utopia Unlimited: Rebooted BONUS

Unnamed Pain - (WIP) - Hanging Around With Music

Bushel Ridge Zone (Act X) - Sonic Isolated

Ornithophobia V0.5 (Full Theme) - Hanging Around With Music

Battle Bark Zone - Sonic Utopia Unlimited: Rebooted

Raining Hangar Zone - Sonic Utopia Unlimited: Rebooted BONUS

Dementophobia (cambi) - (WIP) - Hanging Around With Music

Raging Factory Zone - Sonic Isolated

Final Boss - Sonic Isolated

Credits - "Von Holst" - Sonic Isolated

Credits - "Still Got Von Holst" - Sonic Utopia Unlimited: Rebooted

Collab Mania - Hanging Around With Music

6. Sonic Eternal 2

Teal Turquoise Zone

Glass Mines Zone

Aqua Emerald Zone

File Select

Special Stage

Palooza Casino Zone

Great Grotto Zone

Fractal Top Zone

Dreadnought Empire Zone

7. Hanging Around With Music 2

01 Audio Pinkwave

02 Metallic Trip

03 Deserted Caverns

04 Winter Solstice

05 Secret Saboteur

06 Shining Diamond

07 Guardian of the Sunset

08 Dreaming Isle

09 Fungi Jungle Kingdom

10 Final Dramatic Dictator

11 The Sea Shanty

12 The Nothingness