There was veil between the Buster and the Taisen, which was ripped apart by the shots from the Buster, which were dodged with a move that wouldn't be out of place in an anime, being dodged with a casual lean to the side causing the shots almost graze it's target, before going off to hit nothing but the air. "Don't think for a moment that I forgot about ya." The Gunpla fighter stated to his opponent as his mismatched Gunpla's glowed ominously at the golden machine making it clear that it was it's new target, in a bit of irony Kai had to thank the Buster, he actually couldn't have fired back due to the smoke, if the other Gunpla pilot had actually waited, the preverbal ball would have been in it's court and not Kai's, but thanks to his mistake holes were blow into smokescreen, meaning it was Kai's turn. 

The Gunpla drew it's beam rifle to fire a short barrage back, though he aimed it a bit upwards to discourage the golden Gunpla from going into the air as Kai prepared his Dober gun and fired... way past the Buster Gundam and upwards... Kai and the Taisen jumped into the air still firing suppressive fire to prevent the Buster from getting airborne as a rumbling shock the very mountains themselves. The Gunpla fighter had aimed his Dober Gun to loosen up stone, causing a rockslide to come down at the golden unit like an avalanche.