a parasitic pranks sonic

you are one of sonics friends and part of the Freedom Fighters

You were at Amy's home, discussing Sonic's recently weird behaviour together with Amy, Tails, Knuckles, Shadow and Rouge. Sonic has been pulling more and more pranks, like a throwing a glitter bomb at Shadow (originally meant for Knuckles) or a little messing with Tails's machine causing an explosion

you however have noticed more strange stuff, like Sonic not showing up during fights with Eggman and then making excuses like being sick, however you've seen Sonic go though thick and thin to fight eggman...and you were next to Sonic when he threw the glitter bomb at Shadow and you noticed a weird pink glow in his eyes before it disappeared but never questioned it before

you decided to go find Sonic and excused yourself to go outside and then left to the forest, a place where Sonic usally runs around and relaxes