Meanwhile Espio meets up with Rouge with the Emerald detector. Knuckles proceeds to collect Rings to fuel the Emerald detector and later on meets Silver who is crazy enough to believe that finding Chao could possibly save the world. Testing out their new Emerald Detector, the two treasure hunters discovered that the detector is beeping at a Chao. Sonic and Tails both race to intercept the former's dark counterpart and robotic counterpart respectively. Tails finds another page from Eggman's journal, reading: ' The Ifrit held the power of destruction and the power to 'bind one's soul.''.

Sonic and Tails chase Eggman to the city and loose him. The background features playing card motifs, and the floor is often decorated with red/white dice-patterned tiles. Incorporating both the pinball-flipper slot machines of Casino Night Zone from Sonic the Hedgehog 2 and the bingo-squares of BINGO Highway from Sonic Heroes (activated by running over numbered blocks to form the appropriate ring-earning lines), Neon Palace plays the gambling cliché straight up.

Metal man casino night zone