The main problem with the other was the lack of a crab,I actually would've built the crab with mine, but I had the parts I needed on my self-MOC. I didn't want to tear my self-MOC apart.
I had planned on getting Tunneler Beast last, but it was the only summer set my local stores never had. My final set ended up being Furno's Jet Machine.
Thanks guys! The feet are something I'm particularly proud of. The weapon is the worst part. The launchers would fire just from slightly turning the staff. It's something I would definitely change if I remade this MOC.
A while back I decided to make this: http://www.brickshelf.com/gallery/RaginSpartan86/Mini-Akamai/image.jpg He turned out pretty good, except for his staff-shooter. It's pretty sensitive due to the way it's built.