Mega Man X: Sigma Battles, X Buster and Only Forced Upgrades

Notes: -Sigma's dog, Velguader, is knocked out of an attack by a second-level charged shot (the blue one) or higher (the purple one). Since they both do the same amount of damage, second-level charged shots are the best way to attack it using the X Buster. -Sigma is hurt for one notch from any attack other than Electric Spark, so there shouldn't be any need to charge the X Buster. However, charged shots can be useful anyway because have properties that increase your chances of hitting Sigma when he's bouncing off the walls: The first-level green shot is slower, and both cover more area than a regular bullet. -I fought Sigma's final form the normal way for the first half of his health to demonstrate how to dodge his attacks, then switched to the cheese method (sitting on his hands) for the other half.