A creeping skill granted by wearing a corpse-suit that makes the disguise feel like Carl's real body — with disturbing unlocks.
Fursona is a skill Carl involuntarily gains from wearing the kangaroo corpse-suit. With each level the sensation that the suit is his actual body intensifies — by level 5 he can feel through it well enough to pee accurately, and by level 8 the AI cheerfully announces 'Yiffing is unlocked,' which Carl pointedly refuses to understand. Paired with the 'Weaseler' achievement, it unlocks temporary corpse-suit classes: while suited he gains the 'Fursuiter' class and its buffs, all of which vanish when the suit comes off.
Even the costume paws grant real tactile sensitivity (letting him feel a warm note). A darkly comic, faintly horrifying skill born of Carl's inside-the-boss gambit.
An internal skill whose effect is Carl feeling the worn corpse-suit as his own flesh; no outward form.
A corpse-suit skill granting temporary classes and eerie bodily merger with the disguise.