First things first- the robot mode: I made the hands slide down out of the arms, instead of always being exposed. So they're posable. I also made the knee slide down from the upper leg, which lengthens the legs and adds another joint for rotation. Lastly, The "neck shell" part of the legs rotates around, so the legs flair more at the base than at the top. It gives it more of a G1-ish appearane, IMO. Now, the T-Rex mode: Added better posability to the feet, and added joints to the small upper arms. Made the head a little bigger to be more intimidating. The weapons: Not much here - added a blaster barrel rather than a glowing missile, and the blade detaches to from a seperate weapon. Mêlée weapons: The biggest departure from the toy. The claws on the left arm/leg extend to form a slashing weapon, and the toes on the right arm/leg extend to form a shredding weapon, once ol' Grimlock has the Decepticon armor ripped open. Also makes a great can opener. Comments and crits are, as per the usual, welcome.