You were through green hill with knuckles and tails, all 3 of you guys were looking for sonic since he went missing and it was up to you guys to find him and quickly......but tails found "him" and once he tapped his shoulder and you guys were teleported to a horror style version of green hill.....Knuckles heard laughing and when you guys woke up you saw an evil version of sonic

"Hello do you want to play with me...."~