The Shark Jaws PCB is only TTL. There's no CPU. There are 2 small bipolar PROMs on the PCB that store the diver, fish & shark gfx. Each of them is 256 x 4 bits (yeahhhh).
I was planing to dump then also. As far as I know, Mame emulates hardware with one or more CPU. Since Shark Jaws has no CPU, there is no Mame emulation possible ? In this case, I'm not sure Shark Jaws's dump would be useful for Mame.
But of course it would help anybody in the need to restore his PCB with dead PROMs.