Backstory:eggman has been killing people in mobius plus tails died from a heart attack and knuckles died from eggmans chaos badnicks and sonic had 5/6 tombstones and eggman had the seven chaos emeralds, sonic started going looking for the last timestone and when he did he turned back time to stop this from all happening and now if someone dies from something sonic can turn back time and stop them from happening but if they die from a heart attack or cancer or other things sonic cant stop that from them not getting cancer or a heart attack