(Description from Wookieepedia)
R2-X2 was a green and white R2 series astromech droid that served in the Alliance to Restore the Republic during the Galactic Civil War against the Galactic Empire. In 0 BBY, it was at the Alliance's headquarters within the Great Temple on the moon of Yavin 4 and attended a briefing by General Jan Dodonna on the Alliance's plans to attack the Imperial Death Star superweapon. R2-X2 was then later loaded into the astromech socket of a T-65B X-wing starfighter in the temple's hangar bay which soon launched as part of Red Squadron to destroy the Death Star. It flew with Theron Nett as Red Ten but both were killed when their X-wing starfighter was shot down.

Doesn't have much accessories.

Extras: R5-D4

Movement:
- Landing Gear: Tripod
- Pitch: Move forward and backward
- Roll: Rotate head
- Yaw: Rotate

Use the brakes slowly when going fast, but you can still get up if you fall using Ac1.

Flight Movement:
- Pitch: Move forward and backward
- Roll: Move left and right
- Yaw: Rotate
- Throttle: Ascend altitude

Controls:
- Ac1: Enable flight
- Ac2: Electroshock arm
- Ac3: None
- Ac4: None
- Ac5: None
- Ac6: None
- Ac7: None
- Ac8: Disable head rotation

Arm Control: VTOL

In case you wonder

Why did you make this green astromech droid and not the blue R2-D2?

Because I have a toy of R2-X2 from Legacy Collection since 2009 or 2010 and still survives nowadays :)

If you want, repaint R2-X2 to make R2-D2 or another astromech.