Chuck's Reviews Machine Robo Universe UnitRoborn UnitRobo BeetleSteamengine and TaxiTree
 

Beetle/Steam engine and Taxi/Tree are two of the larger UnitRoborn figures in the line. Both feature the same combination gimmick; easy on, easy off, and a few extra steps to complete the transformation. Once again there's no real articulation of note, but that's not the point, these are fun fiddle toys that just look cool. I really think that any figure from this line, especially the ones I've looked at, is worth a purchase just to try them out.

http://www.youtube.com/watch?v=Vi-iF274aag