> This is the one I have. Is it good?
Assuming the roms haven't been replaced, yes. Those 'Do Not Touch' boxes with the Dallas MCU, SRAM and battery inside are the things we're talking about dumping.
Keep in mind the thing WILL suicide if you look at it wrong tho, so probably better to ship it safely to work that out rather than trying anything yourself, you generally can't even replace the batteries on them using the CPS2 trick they're that sensitive.
there's also a 50% chance of it dying in the process without getting a result, which I guess isn't so bad with alligator hunt because you can just put the unprotected roms on it if it dies, but you do need to be aware of that risk.
There are rumours of a Biomechanical Toy with the Dallas, but we've never seen one.