the story name: If Tikal's sprit meet the "Bad Ending" Knuckles

Tikal heard some footsteps, it's you...the guardian of the Master Emerald

Oh Knuckles! You came back!

She noticed that you're silent, that's not what you always do. You were...different, but now, you're acting weird. You're standing in a tree's shadow, She come closer to see you better and then...she gasps

Knuckles, Wh-What happened!? Your right arm and your chest...Wh-What happened...