Scuff Slayer

1. 
   Binary Respiration

   Discover the principle of binary respiration
   —
2. 
   The Young Soldier

   Join the Anti-Scuff Army
   —
3. 
   Training

   Train with Captain Beaver
   —
4. 
   First Mission... When's Vacation?

   Finish the Slayer's First Mission
   —
5. 
   God?

   Survive the Unknown Entity's Attack
   —
6. 
   Christmas Bird

   Find Utubu
   —
7. 
   The Alpha...

   Find the False God
   —
8. 
   Scuff Riddle... Easy

   Finish Your First Scuff Riddle
   —
9. 
   Captain? What Are You Doing Here?

   Find Captain Beaver After Your First Mission
   —
10. 
    The Executioner...

    Learn to Execute Enemies
    —
11. 
    The Reason for Reality

    Be Defeated by the Blue Demon
    —
12. 
    The Necromancer...

    Find Mauricio
    —
13. 
    Scuff Riddle? NOT AGAIN!

    Solve the Second Scuff Riddle
    —
14. 
    Knighthood

    Take Lazuli home
    —
15. 
    Command Prompt...

    Master Binary Breathing
    —
16. 
    Blue Demon

    Defeat the Blue Demon
    —
17. 
    The Prophecy

    Discover the Scuff Slayer's prophecy
    —
18. 
    HELL!

    Arrive in Hell
    —
19. 
    The Thrill of Reality

    Find the Red Demon
    —
20. 
    The Red Demon...

    Defeat the Simplified Red Demon
    —
21. 
    Complexification

    Complexify the Red Demon and enter the core of reality
    —
22. 
    The Power of Reality...

    Find the Green Demon
    —
23. 
    Chromatic Aberration

    Bring the Red, Green, and Blue Demons Together
    —
24. 
    The Intensity of Reality

    Find the False God
    —
25. 
    The False God

    Defeat the False God
    —
26. 
    Breathe...

    Watch Mauricio tame his demons
    —
27. 
    An unstoppable force meets an immovable object

    Watch Slayer be defeated...
    —
28. 
    The Return

    Wake Up
    —
29. 
    A Monster in My Mind

    There's a new friend in your mind, right?
    —
30. 
    The Queen

    Find the Bee in a Suit
    —
31. 
    Bee in a Suit

    Defeat the Bee in a Suit
    —
32. 
    The end is inevitable...Secret

    Steam withholds the description of a secret achievement.
    —
33. 
    Back to the beginning...

    Go toward the beginning of your existence
    —
34. 
    SPEED UP

    Find the Scuff Motorcycle
    —
35. 
    The Scuff Motorcycle

    Defeat the Scuff Motorcycle
    —
36. 
    The Void...

    Enter the Void of Death
    —
37. 
    Does the Student... Surpass the Master?

    Confront Your Student...
    —
38. 
    Inner Peace...

    Breathe Like a Beaver
    —
39. 
    Don't disturb me... I'm meditating...

    Meditate again
    —
40. 
    The First Tower

    Finish the first tower of the void
    —
41. 
    Corvas and his friends...

    Survive to Corvas
    —
42. 
    The Third Tower...

    Finish the third tower
    —
43. 
    Mecha Utubu

    Destroy Mecha Utubu
    —
44. 
    The beaver Protocol

    ...
    —
45. 
    Everything returns to null

    NULL
    —
46. 
    Farewell

    Farewell...
    —
47. 
    The Oath...

    I will kill death
    —
48. 
    The Old Slayer

    Save... or destroy?
    —
49. 
    The Fool's Game

    Complete Ending 1
    —
50. 
    The Scuff Slayer

    Complete Ending 2
    —
51. 
    The Beginning...

    Complete Captain beaver campaign.
    —

Names, descriptions and icons are the game’s own, as Steam publishes them.