[Goku drops immediately, but it seems he's ready for it. When his feet slip out from under him, he lands on his hands and directs his feet (along with 40 kilograms of iron) straight at Sebastian's shins. Hopefully that manages to ruin Sebastian's balance, because if it does, Goku is taking advantage of his body being much easier to hold on to than the ice and using it as a surface to bridge the gap between him and dry land.]