When I use the effect of Barrage Blast it doesn’t allow me to stop removing material until all material is removed from my monster to replicate all you have to do is have a machine XYZ monster on field activate the effect of Barrage Blast and try to remove only one material to only destroy one card. You should have the ability to choose how many you remove to destroy and you should be able to remove from multiple different monsters. This happens on both android and windows.