RX-77-2 Guncannon (RX-77-2 ガンキャノン) is a Mobile Suit designed by the Earth Federation, a part of the same RX series as Gundam. To improve the mobility of their common Guntanks, the Federation engineers strove to design a walking Mobile Suit with hopes to easily maneuver over jagged terrain. The early models for the prototype Mobile Suit were stolen by Zeon to create Zakus, so Guncannon is actually the second of its particular model. Three Guncannons were manufactured and were sent for testing at Side 7. During the Zeon invasion of the space colony, two models were destroyed. However, the final Guncannon was stationed on White Base and became one of the main defenders of the space ship during the One Year War.