Phantom Ruby prototype

The Phantom Ruby prototypes are objects that appear in Sonic Forces. They are artificial duplicates of the Phantom Ruby created by Dr. Eggman that possess the same powers as the original, but with more restrictions to their usage.

Appearance
Most Phantom Ruby prototypes look exactly like the original Phantom Ruby, being magenta icosahedron rubies with black ripple patterns. The final prototype (the one wielded by Infinite is slightly different in shape however, being more of a tetrahedron.

Powers and abilities
The Phantom Ruby prototypes possess the same degree of power over virtual reality projections as the original Phantom Ruby. However, each prototype possesses a defective trait that makes each prototype unusable to anyone else except the one that first triggered it. Secondly, they can only be activated by those that possess a strong will or strong character.

Sonic Forces: Speed Battle
In Sonic Forces: Speed Battle, at the end of each course, the player can see "Phantom Ruby Prototypes" that resemble the finalized version on Infinite's chest.