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Cosmic Casino Zone is the third Zone of Sonic Pocket Adventure.
This level attempts to recreate the style of Casino Night Zone from Sonic the Hedgehog 2 with the graphics, level obstacles and a similar starry background. The player must traverse through slots, bumpers and pinball levers. This is one of the few levels in the Sonic series that is completely devoid of enemies.
The music in both Acts come from the Bonus Stages in Sonic the Hedgehog 3 and Sonic & Knuckles. The music in the first Act is from the Gumball Machine Bonus Stage, and the music in the second Act is from the Slot Machine Bonus Stage.