On the southern half of South America, there is a lone mountain named Mt. Trial. If you are able to defeat the Red Diamonds here you will receive some very powerful Mobile Suits. All but two of the Red Diamonds are previous Bosses. Some are much more powerful than before. These fights are some of the most difficult, especially without Beam Field. The exceptional rewards are Gundam Heavyarms, Altron Gundam, and Gundam Deathscythe Hell.