Unlock Expert Mode
Complete every Chapter with
all three of the subs.
Unlock Chapter 6 and 7
To unlock Chapter 6 in the
campaign finish Chapters 1-5 with all three subs. To then unlock Chapter 7
finish Chapter 6 with all three subs.
Decals
Collect the following decals
to unlock the corresponding effect. They are listed in order from left to right
and top to bottom.
Unlockable: --- How to Unlock:
1. No decal --- Default.
10. Orca --- Halves air
consumption rate of the masker. (3 required)
11. Lobster --- Prevents
submarine hull leaks. (5 required)
12. Bull --- Increases torpedo
damage. (7 required)
13. Golden Falcon ---
Increases maximum forward/reverse speed. (10 required)
14. Sea Serpent --- Increases
maximum dive/surface speed. (7 required)
15. Eye --- Reveals enemy
positions on the sea chart. (5 required)
16. Tridents --- Increases
torpedo reload speed. (7 required)
17. Lightning --- Increase
torpedo travel speed. (5 required)
18. Crescent Moon --- Extends
the mission time limit by 60 seconds. (5 required)
19. Scope Orb --- Extends
post-mission Periscope Strike by 10 seconds. (7 required)
2. Anchor --- Halves damage
taken from collisions with the environment. (3 required)
20. Cherries --- Extends
post-mission Periscope Strike by 20 seconds. (10 required)
21. Sun --- Increases torpedo
speed in post-mission Periscope Strike. (10 required)
22. Panther --- Decreases
enemy speed in post-mission Periscope Strike. (10 required)
23. Crown --- Lowers the
health of enemy bosses. (10 required)
24. Scorpion --- Negates the
effect of water currents. (5 required)
25. Squid --- Increases the
effect of waters currents. (3 required)
26. Sea Horse --- Halves the
effect of water currents. (3 required)
27. Penguin --- Halves the
impact of shock waves. (7 required)
28. Wave --- Grants a one-time
health boost when reduced to zero health. (10 required)
29. Frog --- Increases the
impact of shock waves (3 required)
3. Octopus --- Halves damage
taken from enemy torpedoes. ( 3 required)
30. Fire --- Increase the
amount of bubbles created by your torpedoes. (3 required)
31. Mario --- Homing
torpedoes. (10 required)
32. Whale --- Become a whale.
(10 required)
4. Skull and Crossbones ---
Halves damage taken from enemy depth charges. (3 required)
5. Arrow through Heart ---
Halves damage taken from collisions with enemy vessels. (5 required)
6. Swords and Shield ---
Halves damage taken from mines. (5 required)
7. Wooden Ship --- Quadruples
recovery speed at the water's surface. (5 required)
8. Bomber --- Halves damage
taken from enemy air-to-sea bombs. (3 required)
9. Snail --- Reduces damage
taken from all sources. (7 required)
