It seems that I can only get close to and attack Time Eater as Modern Super Sonic. No matter how long I spend boosting as Classic Super Sonic, I can never seem to catch up with Time Eater. I can dodge all of the boss's counter-attacks, but that doesn't get Classic Super Sonic any closer for a hit.
Sonic's friends tell me that I can switch between the two Sonics in my pursuit, but while I'm playing as classic, they say to switch to modern in order to go after Eggman to attack.
Is attacking the boss only possible with Modern Super Sonic, and not Classic Super Sonic? Or is it possible to get close enough for a hit with either one?
The final blow does not count, as you have to combine the powers of both Sonics to blast through the fireball attack.
- This guide suggests that it's possible, "but it's extremely difficult." Not remarkably helpful, but still gets me thinking...