Toxic Pools Boss

Toxic Pools boss is an exclusive and first boss in Sonic the Hedgehog Spinball. It is featured on the separated pinball arena at the Toxic Pools. It replaces Scorpius from the 16-bit counterpart with dark, hovering Robotnik's head.

Overview
When the player enters the place, the Robotnik's head is seen at the above center part of the pinball arena, where it floats around and splits single or more sparkling red projectiles to the lower part of the pinball arena. It does never come down and rather stays at the higher part of the arena. The sparkling projectiles are not able to hurt the player, but rather make him bounce backwards after exploding.

The pinball arena is separated from the rest of the regular stage, as there are only few obstacles that can restrict the player's progress. Cluckbird can be seen flying at the center part of the pinball arena while they can block the way to the nearest Sewer Warp, that can transport to the highest point of the pinball arena. While there are only two side transport pipes, the center pipe below flippers and slingshots can send back to the regular Toxic Pools stage and the player has to come back to the separated arena from the same way.

By using flippers to reach higher point of the pinball arena and hit six times the Robotnik head, it explodes and falls down from the pinball arena. Each collision part of the pinball arena rewards the player with 1,000 points and destroying Robotnik's head will give 500,000 points.