Destroy a boss core without destroying any of its peripipes.
Get a Flawless Victory in area 0 or 1
Get a Flawless Victory in area 2 or later
Buy a gun
Buy both guns
Buy all the guns
Reach area 2 without upgrading
Reach area 3 without upgrades
Reach area 5 with no upgrades
Destroy a boss core while your low health warning is sounding
Start a boss fight with the klaxon sounding, and destroy the boss core without it turning off.
Have 20 'kaze balls active at once
Destroy 100 balls
Destroy 1000 balls
Reach area 10
Gee, Brain, what do you want to do tonight?
The same thing we do every night, Pinky
Reach area 34
Destroy 10000 balls
Reach area 42
Reach area 51
Reach area 69
Reach area 88
Reach area 99
Reach area 2
Reach area 5
Reach area 8
Buy armor or shield
Buy armor and shield
Buy an upgrade
Buy all upgrades
Really buy all upgrades
Reach area 100
Destroy a boss core without any balls dying while the boss lives
Destroy a core within 20 seconds of entering an area
Clear an area in less than half the allotted time
Get a time bonus
Get a time penalty
Get a flawless victory with a time penalty
Bank 3000 salvage
Bank 10000 salvage
Bank 50000 salvage
Bank 100000 salvage
Destroy a boss core without destroying any of its peripipes on Normal or higher difficulty.
Destroy a boss core without destroying any of its peripipes on Brutal difficulty.
Get a Flawless Victory in area 0 or 1 on Normal or higher difficulty.
Get a Flawless Victory in area 0 or 1 on Brutal difficulty.
Get a Flawless Victory in area 2 or later on Normal or higher difficulty.
Get a Flawless Victory in area 2 or later on Brutal difficulty.
Reach area 2 without upgrading on Normal or higher difficulty.
Reach area 2 without upgrading on Brutal difficulty.
Reach area 3 without upgrades on Normal or higher difficulty.
Reach area 3 without upgrades on Brutal difficulty.
Reach area 5 with no upgrades on Normal or higher difficulty.
Reach area 5 with no upgrades on Brutal difficulty.
Destroy the boss core while your low health warning is sounding on Normal or higher difficulty.
Destroy the boss core while your low health warning is sounding on Brutal difficulty.
On Normal or higher difficulty, start a boss fight with the klaxon sounding, and destroy the boss core without it turning off.
On Brutal difficulty, start a boss fight with the klaxon sounding, and destroy the boss core without it turning off.
Have 20 'kaze balls active at once on Normal or higher difficulty.
Have 20 'kaze balls active at once on Brutal difficulty.
Destroy 100 balls on Normal or higher difficulty.
Destroy 100 balls on Brutal difficulty.
Destroy 1000 balls on Normal or higher difficulty.
Destroy 1000 balls on Brutal difficulty.
Destroy 10000 balls on Normal or higher difficulty.
Destroy 10000 balls on Brutal difficulty.
On Normal or higher difficulty, destroy a boss core without any balls dying while the boss lives.
On Brutal difficulty, destroy a boss core without any balls dying while the boss lives.
Re-engage
Restart an area
Return to an area
Undo an upgrade