Unlike All of the Other Guardian Forces, Gilgamesh is the iregular Guardian Force of them. Gilgamesh is the replacement to the random appearing Guardian Force, Odin, if you already went ahead and got him before the Lunatic Pandora. At the Lunatic Pandora, if you got Odin prior to fighting Seifer at that stage, during Battle, Odin will enter the battle, and attempt to kill Seifer, but Seifer will kill him instead. After that, Gilgamesh will appear and pick up Odin's sword, and attack Seifer, winning the battle for your party. From that point on, Gilgamesh will be the replacement for Odin. However, if you don't get Odin before battle with Seifer in the Lunatic Pandora, then you cannot recieve Gilamesh as a Guardian Force. So there is a way not to recieve Gilgamesh, if you hate the GF with a passion.
Similar to Odin, Gilgamesh cannot be junctioned, as it is not like any regular Guardian Force. Gilgamesh cannot learn any abilites like a regular GF, i.e. 'SumMag+10%.' Due to that, Gilgamesh has only four abilites he can use. Unlike Odin, whom only could use the Zantetsuken ability. Gilgamesh can use four, but the ability he chooses is dependent on what sword he takes, which is random. Gilgamesh also appears randomly, based on no item or requirement.
| Gilgamesh's Attacks | |
| Name | Description |
| Zantetsuken | The Attack Inherited from Odin, It will cause instant victory. It has No Effect On Bosses However |
| Excalibur | Heavy Damage On All Enemies |
| Excalipoor | One HP Damage To All Enemies, Never Increases Value |
| Masamune | Superior Damage On All Enemies |
Masamune and Excalibur are the only abilities that do damage that can vary. Gilgamesh's other abilites, Excalipoor and Zantestsuken, are the two abilites that will not vary. However, the attack of Gilgamesh with Masamune and Excalibur will vary. Since Gilgamesh cannot be junctioned or be leveled up, the attack depends on the average level of your current party. Gilgamesh's Masamune weapon will do greatly more than Excalibur.
| Masamune and Excalibur Damage | ||
| Level | Masamune | Excalibur |
| 1 | 2625 | 1000 |
| 10 | 3750 | 1562 |
| 20 | 5000 | 2187 |
| 30 | 6250 | 2812 |
| 40 | 7500 | 3437 |
| 50 | 8750 | 4062 |
| 60 | 9999 | 4687 |
| 70 | 9999 | 5312 |
| 80 | 9999 | 5937 |
| 90 | 9999 | 6562 |
| 100 | 9999 | 7187 |
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