Deadblow:

These toys were probably the next best thing to being the actual robot (except maybe the R/C toys). This one had all the features of the real robot! The weapon is the only difference as it is not only soft(probably for safety reasons) but it continuously strikes instead of just once, then retreating back up(although I guess they thought that would be lame, or didn't quite know how to make it only do one strike at a time).

Overkill:

Like Deadblow, this one was also designed exactly like the real version. However, its blade doesn't go all the way back, or at least have the mid-section move to allow this 180 degree motion but at least it goes all the way forward and is flexible like the real one. Flipping it over also doesn't allow the blade to swing at all(the body design prevents this).

Ronin:

The instructions for putting this one together were off slightly where they want the sticker for the blade on after the blade is in place, which doesn't work. The treads are another problem; they're too stiff to allow Ronin to move properly and the wheels aren't tall enough to allow him to move without them. The blade is also sluggish as well. He at least was also successfully made to look exactly like his real-life counterpart.

Backlash:

The builders of this one did pretty well with getting this one to look like Jim's real creation on the show except for one thing: His wedge. The wedge has an axel that sticks out on both ends to secure the wedge to the frame(although it probably could've been made to be one entire piece) and the wedge doesn't allow Backlash to sit on the floor without the wedge "opening" slightly.

Tazbot:

The only problem I had with this one is getting the bottom to fit into the chassis as it just wouldn't quite fit (even my mom had trouble with this) Everything else is pretty well constructed but the actual part of his turret doesn't extend completely upward to let him completely right himself.

Mauler 5150:

This one was well made, however not as well made as others like Deadblow. The stickers they give you can and probably will begin to peel, thus slowing down the already slow spinning dome. Speaking of the stickers, they don't have the regular designs of Mauler 5150 from the show, although they are somewhat close. There is that handle they give you to allow you to battle with it, which comes in handy(no pun intended) to actually hold the bot and not worry about injuring yourself.