You unlocked the ability to run.
All video games need kicking.
Listen to music as long as possible by not packing a radio until it is absolutely necessary.
Pack all the items in all the bathrooms.
You unlocked the ability to jump.
You unlocked the ability to crouch.
You acquired the flashlight.
You finished the normal version of the game.
You finished the extra packing version of the game.
You finished the cut content level.
You played ball.
You spooked a ghost.