Thread:Withersoul 235/@comment-30300307-20170424142809/@comment-30300307-20170424164214

http://sonic.wikia.com/wiki/Chaos_Emerald

Powers and traits
The power of each Chaos Emerald is described as being able to “transform thoughts into power”; [4]  by "sensing" people's thoughts, the Chaos Emeralds can generate the chaos energy they contain which make them an everlasting source of energy.

Sonic Rush
In Sonic Rush the Chaos Emeralds are necessary to access the final stage of the game. Special Stages make a return as a way to obtain the Emeralds. The Emeralds are shown to have an inter-dimensional counterpart, the Sol Emeralds, with similar powers. The Chaos and Sol Emeralds' powers are shown to come from the positive emotions of their wielders in this game and they are used by both Sonic and Blaze to transform into their Super States.

Also Elise was able to  revive Sonic  into the most powerful incarnation of Super Sonic we've seen thus far using the emeralds because she used the emotion of love (arguably the most powerful emotion). Something we've never seen again so far in a Sonic game. Super Sonic then shared his powers with Shadow and Silver.

They grant the user power according to their thoughts/emotions. As long as Sonic is in love he'll always be powerful enough to defeat Multiversal beings like Solaris. Since the Chaos Emeralds power aren't Sonic's own power they cannot be considered outliers. The Chaos Emeralds are the reason why Super Sonic, Super Shadow and Super Silver defeated Solaris.

https://youtu.be/DILfx7tVchs?t=743

This proves that Tails statement about the Chaos Emeralds having unlimited powers are '''not hyperboles. '''

I know that it seems funny to upgrade the Super Forms to: At least MFTL+, possibly Infinite/Immeasurable speed (due to the powers of the chaos emeralds, positive emotions make the Super Forms stronger and faster) but it's true.