Plasma Cannon 2

Plasma Cannon 2 (レーザーキャノン 2) is the seventh and final extra stage in Sonic Forces. It is unlocked after collecting one hundred-twenty Red Star Rings and is playable only as Sonic the Hedgehog and Shadow the Hedgehog (with the Episode Shadow DLC).

Overview
Plasma Cannon 2 takes place in a specialized area within Prison Hall.

Gameplay
Plasma Cannon 2 is played entirely from a 2.5D side-scrolling perspective. In terms of layout, this secret stage is a straight path with several twists and turns.

The only obstacles encountered in Plasma Cannon 2 are the titular plasma cannons. These obstacles take the form of floating, gray balls with green holes in them. In gameplay, they spin around periodically, scattering green energy balls as they turn. Touching these energy balls will damage the playable character. However, the energy balls will disappear after hitting any surface, meaning the player can hide behind platforms and walls to dodge them.