Coldtzos are enemies in Kirby's Return to Dream Land. They are giant, advanced, blue cannons that sit on a blue stand. Coldtzos appear to be a giant sub-species of Shotzos (Shotzos also appear in the game), along with Volttzo and Gigatzo. These giant blue cannons can be found in cold areas, mostly White Wafers. Coldtzos attack by constantly firing giant ice projectiles that travel in the direction fired at. These ice projectiles cannot be defeated or Inhaled, so they must be avoided, otherwise Kirby or whoever touches it (Meta Knight, King Dedede and Bandana Waddle Dee) will take damage from the projectile. Coldtzos, much like with Shotzos, cannot be defeated unless forced somehow to drop into a pit. However, some Coldtzos are in the background of the stage, making them completely invincible to anything. Also much like with Shotzos, Volttzos and Gigatzos, Coldtzos cannot be Inhaled. It is to note that Coldtzo's name is a combination of "cold" and "Shotzo".