Operation Octo

Complete Level 1-1 “Initial Test”

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Complete Level 1-5 “Bumper Maze”

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Complete Level 1-10 “Free Shipment”

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Complete Level 2-5 “Clam Farm”

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Complete Level 2-10 “Sergeant's Plateau”

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Complete Level 3-5 “Graveyard Shift”

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Defeat Crâne Exalté for the first time

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Defeat Dr. Kraxen for the first time

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Defeat Captain Dallons for the first time

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Complete Level 3-10 “Leviathan Trench”

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Complete 20 Sandy Shallows Treat Bucket quests

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Complete 20 Toxic Wastelands Treat Bucket quests

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Complete 20 Twilight Zone Treat Bucket quests

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Feed a total of 10 fish to Dr. Finn

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Have Dr. Odin trigger a Bomb Barrel without taking any damage himself

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Have a projectile deflected between a Bumper Fish and a Racquet Skeleton for 3 rounds

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Get slowed down by your own Frosty turret

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Sink a Racquet Skeleton into a pool using Zappy Jelly while it is dashing

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Sink 5 Skeletons into lakes

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Interrupt a Diver Skeleton’s drill after it has reached max charge

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Have a Leaky Dropship drop all three of its crews into lakes

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Destroy a spinning spray can using Zappy Jelly or Blobfish

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Have a Boomerang deflected between a Bumper Fish and a Racquet Skeleton for 3 rounds

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Prevent Captain Phantom from dealing damage to anything for an entire level

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Wake up or recycle a knocked-out turret as a Reaper Skeleton lifts his scythe to destroy it

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Have a sleeping Hermit waken up by a Potion vapor

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Fail a level for the first time

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Somehow manage to fail Level 1-1 in tutorial mode

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During Level 1-5 “Bumper Maze”, have cannonballs bounce off of 4 different Bumper Fish within 2 seconds, while Odin stands still and takes no damage

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Survive on exactly 1 HP then fully recover before a level’s end

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Have 4 status inflictions on Dr. Odin at the same time

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Fill up your entire Pearl Flask during a regular level

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Beat a regular level without using combat (blue) turrets

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Die from poison damage over time

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Survive a level in Twilight Zone without getting light from Planktons or Lantern Fish

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Play the game on its anniversary of release

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Reach 10 cycles inside a Graveyard Simulation

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Pick up a Ruby

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Discover 5 upgraded turret forms

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Complete any level without taking any damage

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Place down 80 turrets during a single level

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Have Odin take damage equivalent to 140% of his total hp within 10 seconds, without dying

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Have the same Clam knocked out 3 times in a single level

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Have a Bumperfish knocked out by a deflectable projectile

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Blow up 7 skeletons with a single Blobfish

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Revive 5 knocked-out turrets using Bubble Parrots

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Collect 130 pearls within 10 seconds

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Acquire 300 pearls from Mussel Beests during a single level (outside of Graveyard)

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Keep a skeleton stunned for 25 seconds using only Zappy Jellies

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Finish a level with at least 5 Sniper Turtles on the field, without having scared any of them

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Wake up 5 Hermit Holsters within 5 seconds

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Revive a knocked-out Pearl Tree before it dies permanently

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Have 3 non-mimic Pearl Trees on the field simultaneously

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Have 4 Pearl Trees die in a single level

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Have 15 Lantern Fish on the field at the same time

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Permanently lose a turret by having it sink into a lake

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Have 7 Watchdogs on the field at the same time

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Evade a Watchdog for 20 seconds while he chases after you

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Place Hammer Shark 10 times during a single level

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Have 3 Spiky Urchins on the field at the same time (outside of Graveyard or Custom Levels)

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Keep a skeleton taunted by the same Red Herring for 10 seconds, without stunning the skeleton

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Have 2 pink imitated turrets (from Imitation Crabs) on the field at the same time (outside of Graveyard or Custom Levels; Everywhere Eel doesn't count)

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Land Lionfish‘s critical hit 5 times

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Make a profit of 15 Pearls using a single Frogfish

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Win a level where at least 5 skeletons are trapped by Crab Traps at the end

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Win a level by only manually placing Everywhere Eel ONCE, without ever placing any other combat (blue) turrets

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Have 20 Frosty Everywhere Eels on the field at the same time

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Have 300 uncollected Pearls on the field at the same time

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Have 70 Ice Mucus tiles on the field at the same time

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Have Hollow Snail egg mines kill 5 skeletons during a single level (outside of Graveyard)

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Land all four of an Axe-o-lotl’s slashes onto the same skeleton

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Complete Level 2-5 “Clam Farm” in under 4 minutes

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Complete Level 3-5 “Graveyard Shift” without getting stunned or taking any damage

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Pick up 200 successive coins without having left any coin to disappear

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Earn a total of 10,000 coins

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Earn a total of 100 rubies

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Spend over 5000 coins at Dr. Finn’s shop

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Fill up all gravestones inside any one Graveyard Region

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