Playing as Tails, the player must fight an endless array of Mega Mans and Chibi-Robos on Central Highway and survive for a time limit of 2:00. Up to three opponents can appear at once and defeating one will cause another one to appear. The player has 1 stock, and each opponent must be KO'd once to be defeated. The launch rate for opponents is set to 3.3 so they take much more knockback from attacks, and they also deal 40% less knockback than normal.
The ranking the player gets is based on how many opponents the player KOs before the event ends. The specific conditions for this are listed below.
The event's two original previews.
This event is named after the regime of robots ruled by Doctor Eggman in the Sonic franchise.
The preview image of this event was changed twice over the development of SSF2. It was first changed in Beta 1.2.4 due to Central Highway receiving new sprites, and it was changed again in Beta 1.2.5 due to Chibi-Robo receiving new sprites.