Achievements -

1. Get Eaten - 4:55
Get eaten by the bird.

2. The First of the Hidden - 5:06
Discover the Skull of the First

3. The Fabulous Stomach - 6:28
Reach the stomach of the bird

4. The Second of the Hidden - 9:45
Discover the Skull of the Second

5. Peculiar Dwellings - 15:02
Reach the stomach city

6. The Third of the Hidden - 15:28
Discover the Skull of the Third

7. Construction and Destruction - 20:22
Reach the stomach city's upper zone

8. The Fourth of the Hidden - 25:10
Discover the Skull of the Fourth

9. The Floor is Acid - 26:01
Reach the Acid Ocean

10. The Fifth of the Hidden - 28:54
Discover the Skull of the Fifth

11. Twists and Turns - 29:25
Reach the small intestines

12. The Sixth of the Hidden - 40:36
Discover the Skull of the Sixth

13. Junk and Rubbish - 46:12
Reach the large intestines

14. The Seventh of the Hidden - 47:50
Discover the Skull of the Seventh

15. Armed Insects - 55:22
Reach the colon

16. The Eighth of the Hidden - 58:59
Discover the Skull of the Eighth

17. Big ol' Bombs - 1:03:07
Reach the Missile Chamber

18. The Ninth of the Hidden - 1:04:12
Discover the Skull of the Ninth

19. Going Down with the Ship - 1:08:06
Obtain the launch ending

20. Lose-Lose - 1:08:45
Obtain the escape ending

21. The Hatless One - 1:09:32
Obtain the launch and escape ending

22. Blessed - 1:10:40
Receive the Blessing of the Nine