|Final Fantasy X Boss|
|Location||Macalania Lake Road|
|Common Steal||Lunar Curtain|
|Rare Steal||Lunar Curtain|
|Weapon Drop||Piercing, Firestrike, Lightningstrike, Waterstrike, Icestrike, Alchemy|
|Armor Drop||Fire Ward, Lightning Ward, Water Ward, Ice Ward|
|Abilities||Gatling Gun, Assault, Mana Beam, Negator|
|Resistant to||Zanmato (Lv. 4)|
|Immune to||Silence, Sleep, Darkness, Poison, Petrification, Zombie, Power Break, Magic Break, Armor Break, Mental Break, Threaten, Death, Provoke, Doom, Eject|
|Other Information||The party cannot escape.|
Crawler is accompanied by a Negator which blocks all use of magic and Aeons. Destroying it is quite easy, although that action can be a double-edged sword: when it is gone Lulu will be free to use her Thunder spells, and Yuna can summon Ixion to deal lots of damage. However, Crawler will be free to charge its Mana Beam, which is a devastating attack on the entire party. The charge can be halted with a spell, but this (and if the Mana Beam is fired) will result in a new Negator being launched. This also means that if you time the summoning of an aeon, the Negator will stop it from using Mana Beam and you can have the aeon out for the fight, making it somewhat easier.
The Crawler counters your spells with a normal physical attack, and will often use its Gatling Gun that randomly hits all party members for moderate damage.
Once again, Tidus's abilities will be useful in this battle. Slow and Delay Attack will be very effective; and also Cheer and Haste for the party. Auron's Armor Break should also be used on the Crawler. Rikku's Mighty Guard Overdrives can be very helpful in this fight.
There is another way to fight it without using magic. Use Rikku to get Lightning Marble and Electro Marble from fiends in the Thunder Plains. Get twenty to twenty-five from Gold Element and finish it off with Tidus and Wakka. It should get to 10,000 or 7,000 damage from the marbles, so you can finish it off without killing the Negator.