Frosty for the likes of moose or elk -Butcher meat/hand saw. Folding saws are a great tool but for these bigger animals they aren't the best choice. Butchers meat/hand saw looks like a hack saw but with a different blade, just like a hack saw the blades are replacable and it works quite well. I use one when deboning isn't an option or I have also used a chainsaw with vegetable oil when limited hands on deck are available.
I'll try to attach an image of Butcher Meat/Hand Saw.