The Kaladgolg is the third boss in Metal Slug Advance.
It is a troop train armed with a large laser cannon in the middle and has extra weapons which consists of two miniguns & two mine launchers.
This boss will constantly fire its miniguns and launch mines. When it fires a laser, (unlike the Tani Oh turret, which swivels around to fire at the player), this boss follows the player around until it fires. To avoid this attack, the players should stay on one of the edges of the screen, as the boss's laser cannon doesn't reach all the way to the edges of the screen. The weak spot is the laser cannon, and secondary weapons cannot be destroyed. unlike the Tani Oh. When Kaladgolg starts flaming, every weapon it has speeds up, making the battle slightly harder. This time, Kaladgolg will launch floating mines instead of launching normal ones. Destroying one of these will provide you a Rocket Launcher. Any type of slug will make this battle easier (except the Slug Gunner, because the player will have to keep jumping up in order to shoot down with its machine gun). If the player is trying to beat this thing without any kind of slug, the easiest way to beat the Kaladgolg is to keep shooting its turret with your basic gun (use any kind of ammo if you still have it). Metal Slug (Black Hound is also recommended) and Super Grenade will provide short work of this boss and receiving them a card of Kaladgolg.
- The Kaladgolg highly resembles the Tani Oh from Metal Slug 1. but is mounted on a railcar instead of a large tank. However, it has a different fire towards to player.
- Additionally, The train feature and its single cannon slightly resembles the Mini-Bata.
- The Kaladgolg reappeared in Metal Slug Defense. Like Tani Oh and Hozmi, it was placed in bottom of screen. but, it was nearly impossible to hit the Kaladgolg. The only way to destroy it is by using The Keesi II, Crablops leg and/or Cabracan's special attack.