Perfect Chaos is the only major boss in Sonic Generations that wasn't a creation of Dr.Sonic & All-Stars Racing Transformed Review Additionally, the section where the player is launched into Perfect Chaos' brain is skipped immediately to the third section of the regular mode. The Hard Mode battle is much the same, but Chaos' attacks are more frequent, and another section is added to the battle before the original fourth section. Sonic must then jump across these platforms toward the nearest platform to Perfect Chaos on the player's right hand, whilst still avoiding Perfect Chaos' attacks and falling off the stage, to hit Perfect Chaos' brain with another Homing Attack and thereby defeat Perfect Chaos.

Once Perfect Chaos has been hit three times, 'Boss Battle: Perfect Chaos Pt-II 'Perfect Chaos Revival!' starts like in Sonic Adventure for the fourth phase of the battle, but the battle style changes as Perfect Chaos causes several platforms to rise up from the watery area. In the second phase, Sonic must traverse up the rubble of a building and use springs to attack Perfect Chaos' brain with a Homing Attack. Unlike in Sonic Adventure, it does not matter what speed Sonic enters Perfect Chaos' body with. In the first and third phases, Sonic must boost into Perfect Chaos to move up his watery body to attack his core. Sonic must travel through the flooded ruins of Station Square towards Perfect Chaos in both 2-D and 3-D perspectives whilst avoiding Perfect Chaos' attacks, which include energy missiles, giant whirlpools and water tentacles. In this boss battle, there are several Star Posts that allow the player to return to specific points of the battle should they die.įor the most part, the battle is a reprise from the final battle of Sonic Adventure.

However, without access to all seven Chaos Emeralds, Sonic must Boost to avoid falling into the water and to inflict damage on Chaos. The battle with Perfect Chaos is mostly similar to the original battle in Sonic Adventure.

Sonic generations 3d model