Find the first skull.
Find the second skull.
Find the third skull.
Find the forth skull.
Find the fifth skull.
Find the sixth skull.
Find the seventh skull.
Find the eigth skull.
Find the ninth skull.
Find the tenth skull.
Find the eleventh skull.
Find the twelfth skull.
Find the thirteenth skull.
Find the fourteenth skull.
Find the fifteenth skull.
Find the sixteenth skull.
Find the seventeenth skull.
Find the eighteenth skull.
Find the nineteenth skull.
Find the twentieth skull.
Find the twentieth first skull.
Find the twentieth second skull.
Find the twentieth third skull.
Find the twentieth fourth skull.
Find the twentieth fifth skull.
Finish the game.
Die once.
Reach the slide cutscene.
Find all skulls in one playthrough.
Kill a skeleton.