Sonic Spinball
Toxic Caves

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Toxic Caves

Toxic Caves, known as Toxic Pools in the 8-bit versions, is the first level of Sonic the Hedgehog Spinball for the Mega Drive and its 8-bit port for the Game Gear/Master System. It is followed by Lava Powerhouse. As with other stages in this game, Sonic must bounce through the pinball-like level, acquiring Chaos Emeralds which are in turn used to access the boss. In this stage, there are three to find.


Toxic Caves is a disgusting, slimy dungeon, filled to the brim (literally) with horrible green ooze which is all kinds of deadly. The level encompasses the half-submerged caves at the foot of Mt. Mobius, where Sonic washes up after being blasted off the Tornado during his and Tails's approach to the Veg-O-Fortress. In keeping with Robotnik's general ethos regarding environmentalism, the fat man is using the caves as a dumping ground for kilotons of radioactive slurry produced by the Fortress' cruel industry. Rusted sewer pipes snake through rocks dripping with fluorescent green pollution, and the waters below are patrolled by an immense robotic sea-serpent.


Main article: Scorpius

Scorpius, the boss of Toxic Caves

A giant mechanical scorpion with Robotnik's face (and apparently his distaste for movement, too), Scorpius generally just sits at the top of the level, periodically spitting drops of green toxicity out of its stinger. To defeat it, simply leap into the gap between its body and its tail; Sonic will rattle around like a pinball, inflicting vast quantities of damage. Although if you want to make the environment do the work for you, hit the four switches above the boss to initiate a landslide of rocks that'll smash it up.

In the 8-bit versions, the boss of Toxic Pools is instead a variant of the Robo-Boiler from Lava Powerhouse.


  • This is the only level in which the very bottom is not the only place where lives can be lost. The middle section of the level is dangerous for the green sludge below the flippers. However, this does not necessarily make Toxic Caves the most dangerous level in Sonic Spinball.
  • After collecting all three Emeralds in this opening Zone, the barrels in the middle section start to move, so they will not save the player from draining the ball (Sonic) unless lucky enough for them to be in the right place at the right time. Magma Worms stop appearing at this point.
  • A glitch in this level will sometimes allow Sonic to pass through the covers that block the way to the middle section until the slime is drained from the tank in the middle, although the central Emerald cannot be collected while the slime is still there.
  • The music for Toxic Caves appears as an unlockable music track in Sonic Generations.
  • This is the only level with a significantly different layout in the 8-bit conversion.


Name Artist Length Music Track
Toxic Cave Brian Coburn, Barry Blum, Howard Drossin 3:03
Toxic Caves
Toxic Pools Paul Gadbois 1:57
Toxic pools 8-bit

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