Ignition Weapon

An Ignition Weapon is a powerful type of weapon used in the Tower.

When activated(시동, shidong, 始動; "ignite" or "start engine"), it releases vast amounts of power, enhancing its speed, damage, etc.

In Ignition mode, certain weapons like the Green April are capable of changing their forms like splitting up to form a forest.

Ignition weapons are supposedly quite rare on the lower Floors of the Tower, as Androssi was very surprised when she first saw Namaruda.

An incredibly famous and powerful group of Ignition weapons are called the 13 Month Series.

A branch form of Ignition weapons are Compression Weapons.

Other examples
Vagnil is a spear which you can use like a bow and when ignited, becomes a B-Rank weapon.