Inside's core mechanic is possession disguised as cooperation.

You don't negotiate with the pig-like creatures you encounter—you climb into their nervous systems and pilot them toward your objectives.

The game's progression literally locks you out of forward momentum until you've occupied something else's body and made it serve your will. Early puzzles are gentle about it: use the pig to press a switch you can't reach.

But the logic scales—by the game's final descent, you're stacking bodies, weaponizing drowning victims, turning the drowned into meat platforms. The game doesn't flinch at what it's asking you to do because it's stopped pretending there's an alternative. The boy—your avatar—never negotiates, never cooperates, never asks permission. He enters through any opening and assumes control. When a creature resists, the game presents this as a puzzle to solve, not a boundary to respect. The design language is clear: resistance is an obstacle to overcome through greater penetration, greater leverage, greater will. Inside understands something most games don't—that coercion feels like problem-solving when the interface is good enough. The satisfaction of puppeteering a body through water, of feeling it respond to your input, is neurologically indistinguishable from solving a legitimate puzzle.

By the time you're elbow-deep in the endgame's body horror, you've already internalized that inhabiting others isn't transgressive—it's just how things work. The game doesn't judge you for this, it rewards you—and that's the argument baked into every button press: authentic movement in a constrained world requires you to become a parasite, because everything else is stagnation.