Crymson

'''NOTE: This hero has a gender, but it isn't specified. If you're one of those people who are offended by that, then stop reading this page right now. I'm trying to add more representation of different kinds of people with the heroes in Siege, okay?'''

Crymson
Crymson is a hero introduced in Bloons Tower Defense Siege. They use a freeze ray to freeze bloons solid. Frozen bloons can't be popped by sharp projectiles.

Origins/Mechanics
Crymson's name is a portmanteau between the word cryo and the name Crimson. Crymson's last name is a reference to My Hero Academia's Crimson Riot. Originally, they were going to be a tower instead of a hero. They don a sky blue and white hazmat suit with dark gray boots and gloves. The mask is replaced by a large black tinted helmet that you can't see through. Crymson is unique amongst the heroes as due to the fact they have a full-body suit and a muffled voice, their gender is never said throughout the entire game. (See Trivia section for more details) The name of the ability Subzero is a reference to Sub-Zero from the Mortal Kombat series.

Crimson shoots a freeze ray that can pop up to 4 bloons and pierces through them. Bloons hit are frozen for 1.2 seconds. Crymson cannot attack bloons that are already frozen, and will not target bloons that have just unthawed for 0.35 seconds after they unthaw to prevent perma-stuns.

Upgrades
Crymson will start upgrading themself every round upon placement. They earn more XP each round to unlock their next upgrade irrespective of how many bloons they pop. Their upgrades can also be immediately bought with cash, though the amount of cash required to purchase the next upgrade will typically increase as the upgrades get higher, making self-upgrading an important element for their overall power.

The following are the upgrades and their costs of upgrading without XP:
 * Level 1 - Crymson shoots a freezing ice beam that can pierce through bloons.
 * Level 2 - Base attack freezes bloons for half a second longer.
 * Level 3 - Cryostate ability: Freezes all bloons for 1.6 seconds in a small radius around them.
 * Level 4 - Slightly increases range by 15%.
 * Level 5 - Allows Crymson to detect Camo Bloons.
 * Level 6 - Crymson can freeze and damage bloons immune to ice.
 * Level 7 - Valuable Ice: Frozen bloons that are popped give you an extra $2.
 * Level 8 - Cryostate ability lasts for 1.75 seconds instead of 1.6.
 * Level 9 - Crymson's beams now home onto bloons.
 * Level 10 - Subzero ability: For 15 seconds, all bloons frozen by the freeze ray constantly lose 2 layers every second.
 * Level 11 - Periodically shoots a cryo-bomb instead of an ice beam. Cryo-bombs explode in a medium radius when they hit a bloon, dealing 2 layers of damage to up to 20 bloons and freezing them for the normal duration. Although it is an explosion, it still deals ice damage.
 * Level 12 -
 * Level 13 -
 * Level 14 -
 * Level 15 -
 * Level 16 -
 * Level 17 -
 * Level 18 -
 * Level 19 -
 * Level 20 -

Trivia

 * While Crymson is either a boy or a girl, it remains a mystery in-game. The other heroes refer to them with different pronouns. (When placed next to other heroes in-game, they say things)
 * Quincy, Hamilton, Obyn, Pat, Ezili, and Striker Jones refer to Crymson as a male.
 * Benjamin, Churchill, Valentina, Wally, Portman, and Wheatley refer to Crymson as a female.
 * Crymson themself never says anything about it in their voice lines.