Yeah, except the Boombats, which explode when they hit the target. Nice and animal friendly there. Oh, and not forgetting the Chippunkz that get stamped on.
Why couldn't Live Ammo be used in the Quintology? It's more along the lines of Product Delivery Firearms from Munch's Oddysee than possession, so I don't know that it would replace it. But hey, even the familiar concepts of possession and button-combination GameSpeak can do with a rest.