RabidFrog

High Quality Defense

Level up a tower to level 10

Goblin Slayer

Kill 100 enemies

Zombie Slayer

Kill 1,000 enemies

Demon Slayer

Kill 10,000 enemies

Aberrant Slayer

Kill 100,000 enemies

God Slayer

Kill 1,000,000 enemies

Under Graduate

Make a discovery at a university

Graduate

Make 10 discoveries with a university

P.H.D.

Make 100 discoveries with a university

Minor Investments

Spend 1,000g funding research

Expanded Learning

Spend 10,000g funding research

Major Investments

Spend 100,000g funding research

Every Tool in the Box

Unlock every tower

Bye bye green guy

Defeat Ooogie in single defense

Ogres aren't forever

Defeat Ooogie in double defense

Even at your worst, you're not your best

Defeat Ooogie in triple defense

Guess who's back?

Defeat spooky Ooogie in single defense

Back to the grave

Defeat spooky Ooogie in double defense

How many times must you die?

Defeat spooky Ooogie in triple defense

Bop boop beep you're dead

Defeat evil Ooogie in single defense

The taller they are, the shorter the circuits

Defeat evil Ooogie in double defense

Alt F4

Defeat evil Ooogie in triple defense

Not so smart

Defeat otherworldly Ooogie in single defense

Just think of the power

Defeat otherworldly Ooogie in double defense

No more mango

Defeat otherworldly Ooogie in triple defense

This one, I like this one.

Level up a tower to level 20

Super Tower!

Level up a tower to level 50

Only Ballista

Win by building only ballista towers

No More Ballista

win without ever building a ballista

No Stone Unturned

Build one of each tower type in a single game

Sticks and Stones

Win by only building ballistas and mortars

Fortress

Increase tower max health to 30+

Electroshock Therapy

Win by only building ballistas and tesla coils

Winter in Wisconsin

win by only building ballistas and frost keeps

Ashes to ashes

win by only building ballistas and flame throwers

Cough Medicine

win by only building ballistas and poison sprayers

Rip and Tear

win by building only ballistas and shredders

Watch your step!

win by only building ballistas and encampments

Target acquired!

win by building only ballistas and lookouts

Arrows and Aeroplanes

win by only building ballistas and radars

Laser cannon death sentence

win by building only ballistas and obelisks

Sniper Party

win by only building ballistas and particle cannons

I guess I'll just die then

Bastion

Increase tower max health to 40+

Citadel

Increase tower max health to 50+

Slow and Steady...

Increase maximum slow to 90%

Speed Limit

Reduce maximum haste to 0%

I Wander where they are...

Get no occult shrine spawns on a run

Double Trouble

Beat double defense using only ballistas

Indirect Firepower

Beat double defense using only mortars and ballistas

Tesla go bzzt

Beat double defense using only tesla coils and ballistas

Freeze me

Beat double defense using only frost keeps and ballistas

Dust to dust

Beat double defense using only flame throwers and ballistas

Spicy Wind

Beat double defense using only poison sprayers and ballistas

Lumberjacks gone wild

Beat double defense using only shredders and ballistas

Click click boom

Beat double defense using only encampments and ballistas

Painting targets like painting houses

Beat double defense using only lookouts and ballistas

Death from above

Beat double defense using only radars and ballistas

We should put these on sharks

Beat double defense using only obelisks and ballistas

Get deleted

Beat double defense using only particle cannons and ballistas

Shadow of the Ballista

Beat triple defense using only ballistas

Nothing but bits

Beat triple defense using only mortars and ballistas

Maelstrom

Beat triple defense using only tesla coils and ballistas

Ice ice baby

Beat triple defense using only frost keeps and ballistas

Holy Fire

Beat triple defense using only flame throwers and ballistas

Geneva Convention

Beat triple using only poison sprayers and ballistas

Trail of Blood

Beat triple defense using only shredders and ballistas

Safe Passage

Beat triple defense using only encampments and ballistas

Death at first sight

Beat triple defense using only lookouts and ballistas

Air Superiority

Beat triple defense using only radars and ballistas

The glow, the wonderful glow!

Beat triple defense using only obelisks and ballistas

Screw you in particular

Beat triple defense using only particle cannons and ballistas

April Fools!

Are you sure this is a challenge?

Beat Ooogie on single path march of the monsters.

Ok, that was a little spooky.

Beat spooky Ooogie on single path march of the monsters.

Not even hard...

Beat evil Ooogie on single path march of the monsters.

March Madness

Beat single path march of the monsters.

Twice the paths, twice the cards.

Beat Ooogie on double path march of the monsters.

Two paths, double cards: second boss down.

Beat spooky Ooogie on double path march of the monsters.

Twice as Hard

Beat evil Ooogie on double path march of the monsters.

Twice the Victory

Beat double path march of the monsters.

Let the march begin!

Beat Ooogie on triple path march of the monsters.

This challenge doesn't scare me.

Beat spooky Ooogie on triple path march of the monsters.

This march's dogfight is leading to victory.

Beat evil Ooogie on triple path march of the monsters.

Victory March

Beat triple path march of the monsters.