Eggman's Sonic Simulator

Eggman's Sonic Simulator (widely known as Sonic Sim) is the multiplayer mode of Sonic Colors. It can be playable as a form of a co-op, But it can be played with 1 or 2 players either way. The playable characters are a variety of differently coloured Robo-Sonics and Miis

Sonic Sim was revealed by IGN on 2 September, 2010. The mode is unlocked by collecting red emblems throughout the in-game stages. Unlocking them is optional and will be selected on the menu screen.

The co-op is mainly a 2D scroll co-op and the Robo-Sonics can activate Wisp Power as well. Most of the levels are very plain, with no specific look and a simple colored background. The stage selcet is also represented by the Chaos Emeralds and each emarald has 3 stages sporting its color and retro music. There are a total of 21 stages and only Robo-Sonics and Mii's are playable.

There are 3 different ways to play, 1 Player means that you can play by yourself and you can switch between the 2 Robo-Sonics at any time, Then there's 1.5 players meaning that the 2nd player can Drop in or out at anytime. And finnaly there's 2 player mode meaning that 2 players must work together and stay close to each other with no Droping out in order to succeed.

Playable

 * Robo-Sonic
 * Mii

Trivia

 * Sonic Sim was first leaked by Amazon's Japanese website showing a picture of Robo-Sonics running in a colorless world. But it was removed soon after.
 * It wasn't SEGA who first confirmed Sonic Sim but it was IGN's Sonic Colors' preview. However they hadn't named it "Sonic Simulator".