Plasma Cannon 1

Plasma Cannon 1 (プラズマキャノン 1) is the fourth secret stage in Sonic Forces. It is unlocked after clearing Network Terminal and is playable only as the Avatar.

Overview
Plasma Cannon 1 takes place across a specialized area within the interior section of Network Terminal.

Gameplay
The course through Plasma Cannon 1 takes place entirely in 2.5D and is a straight path with several twists and turns. The level layout depends on the chosen Difficulty Level for Sonic Forces ("Normal" or "Hard").

The obstacle encountered in Plasma Cannon 1 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 deal damage to the player. However, the energy balls will disappear after hitting any surface, meaning the player can hide behind platforms and walls to dodge them.