Bonfire Colossus

The monster effect "If you control a FIRE monster, you can Special Summon this card (from your hand)" is not classified as an Ignition Effect, Trigger Effect, Quick Effect, or Continuous Effect. (No Chain Link is created when performing a Special Summon this way.)

The monster effect "You can Special Summon this card (from your hand)" can be used to Special Summon this card by its own effect if you control at least one face-up FIRE monster in your Monster Zone.

The monster effect "When this card is Special Summoned: Target 2 FIRE monsters you control; destroy them" is a Trigger Effect. (It targets 2 face-up FIRE monsters in your Monster Zone. You can include "Kakushaku no Majin" itself as a target.)

The monster effect "Target 2 FIRE monsters you control; destroy them" is a mandatory effect that activates when "Kakushaku no Majin" is successfully Special Summoned. (It activates not only when Special Summoned by its own monster effect, but also when Special Summoned by the effect of another card. It also activates during the Damage Step.)

The monster effect "Target 2 FIRE monsters you control; destroy them" activates even if you control 1 or fewer FIRE monsters in your Monster Zone. (In that case, since you cannot select 2 monsters as targets, the effect is not applied.)