Sonic the Hedgehog (2006)/End of the World

This is the stage for the "Last Episode". You must go through Iblis-infested segments of 7 previous stages with a certain character on a hunt for the Chaos Emeralds in order to save Sonic also different enimies such as eggmans robots in crisis city and so on:

You must then face Solaris in two phases. The level bears a coincidental resemblance to the similarly named End of the World in the first Kingdom Hearts due to the purple overtones (which gives both levels a surreal feeling) and the usage of short segments from previous levels.
 * Extra Boss: Solaris Phase 1 and 2.