Realistically, we all know the most effective way to deal with a giga is to kill it. They are easily one of the most difficult tames in the game just based on consumed resources, and they straight up aren't worth taming unless you plan to super breed them. So, instead I submit you this idea. Make a standard Plinger Phoo giga trap,but lined all along the bottom with metal spike walls. If done correctly, you can lure the giga in and let it die on the spikes. Also useful for clearing out unwanted dinos without wasting bullets or ammo. Just lure into the death trap.

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