- The X-Weapon could drain Ryan if used too long.
To activate the X-Weapon, Harris and Spyder press a button which looks like an X. In Versus The Arctic, Veracity, instead of Harris, activated the X-Weapon with Spyder due to Harris piloting the Mech Jet.
- Harris was working on the X-Weapon in Let's Be Idiots!
- In Let's Get the Big Bad!, Ryan used the X-Weapon against Clawboon.
- The X-Weapon failed against the monster in Let's End This! Part Two.
- Since Grey fell into Clawboon's ooze (which was zapped by the X-Weapon), she could turn into Clawboon whenever she wants.
- In Versus The Arctic, Traeger tricked Ryan into firing the X-Weapon at the pile of ooze.
- Leo and Harper were fixing the X-Weapon in Versus Miami.
- In Versus the X-Weapon it was shown that after Leo and Harper fixing the X-Weapon they added a upgrade making the X-Weapon able to use both of the arms of the robot to give the X-Weapon a powerful beam by transforming the normal arm into a cannon-arm.
- The X-Weapon is the strongest weapon Mech-X4 has.
| To view the X-Weapon gallery, click here.