... (Trivia EYX cannot disguise himself for too long, and even still, his Sonic disguise isn't really convincing. Knuckles isn't exactly dead. Despite having a parasite inside of him, he's nothing but an empty host for the eggs. Every Sonic character killed by EYX is doomed to feel the pain they felt before dying, forever (even in their "EXE" form). Tails died by getting his head burnt off, therefore he's still feeling the pain of getting his skin, eyes, etc. getting burned.