This game is update it like a couple hours and I try again for myself I killed all besides knuckles. He was so annoyed he keep jumping I keep dying the same person. and I just decided to kill knuckles first even though cream cream is healing knuckles I killed him, and I finally did it. It was so hard.
Its ok guys just keep trying and you will beat them☆ if you want a tip go for cream first since she heals knuckles and once she's down go for knuckles if you go for him watch out for tails arm cannon which is what i did and i took out tails last so easy first cream then go and try to beat knuckles and once he's out the way go for tails remember don't run in a straight line wait till he shoots by running to the sides while he charges his arm cannon while still moving towards him but don't hit him till he shoots
