Bloons Golden Defense/Achievements

Achievements return from BTD6 in Bloons Golden Defense. However, they are split into two groups: Real achievements and secret achievements.

Achievements
Dart - Place a Dart Monkey.

'''What happened to my Spike-O-Pult? - '''Get a 3/x/x Dart Monkey. (Unlocks Spike-O-Pult)

All the Darts - Unlock all upgrades for the Dart Monkey.

The End - complete story mode. (Unlocks Gem Lord)

The End, Again -  Complete story mode twice. (Unlocks Gem Lord's final upgrades)

The End, Again, Again - Complete story mode three times. (Unlocks Gem Lord's 5/5/5 upgrade)

The End, Again, Again, Again - Somehow complete story mode four times. (Unlocks... something)

Tacky - Place a Tack Shooter.

Overtack - Unlock all upgrades for the Tack Shooter.

It'll be back - Place a Boomerang Monkey

It's back - Unlock all upgrades for the Boomerang Monkey

Ninja'd - Place a Ninja Monkey.

TOO MANY NINJAS, SO... - Unlock all upgrades for the Ninja Monkey.

'''Ka-Boom! -''' Place a Bomb Shooter.

'''KA-BOOOM! - '''Unlock all upgrades for the Bomb Shooter.

And now for the weather... - Place an Ice Monkey.

'''IT'S **CKING COLD! - '''Unlock all upgrades for the Ice Monkey.

You're rubber, I'm glue - Place a Glue Monkey.

It's raining glue - Unlock all upgrades for the Glue Monkey.

Super - Place a Supermonkey.

Ultimate Supermonkey - Unlock all upgrades for the supermonkey.

Faster than the speed of sound - Place a Hypermonkey.

Faster than the speed of light - Unlock all upgrades for the Hypermonkey

Roasted - Place a Flamethrower Monkey.

My world's on fire - Unlock all upgrades for the Flamethrower Monkey.

Fist to Face- Place a Puncher.

Knockout - Unlock all upgrades for the Puncher.

'''UNLIMITED POWER! - '''Have a 5/5/5 tower.

'''Diamonds! - ''' Place a Gem Lord.

'''Diamonds for everyone! - ''' Unlock all upgrades for the Gem Lord.

Welcome to the Dark Side - Place a Dark Matter Monkey.

Point of No Return - Unlock all upgrades for the Dark Matter Monkey.

Super Bloon Popper -  Complete every track on Easy.

Mega Bloon Popper - Complete every track on Normal.

Bloon Popping King - Complete every track on Hard.

Supreme Bloon Popper - Complete every track on Impoppable.

Gotta Collect 'Em All -  Achieve every achievement.

Been There, Done That - Do these things in any order:
 * Kill Hologram Blastapopoulos for the tenth time.
 * Have $1,000,000 at some time ingame.
 * Pop 100,000,000 bloons.

completing this achievement gives you the option to make all your towers and bloons golden.