Fly, then die.

Discover a Death Route.

Discover a "?" Bonus Path.

Enter a Bonus Round after collecting 3 Character Tokens.

Fail a mission.

Defeat Queen Leech.

Obtain all keys and use them all.

Try to push something heavy with Rebecca.

Fight off the Proto Tyrant.

Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.

Get picked up by the Infected Bat.

Play the piano using Rebecca.