Another Ultra Being released by Bandai (see previous post) from the Sound Battler Series is Ultra Seven. Not as much articulation as Medicom's or Marmit's (in fact, raising of the arms would hardly qualify as articulation) but a fun toy nonetheless, especially with the interaction between Ultraman and kaiju or monsters.
Ultra Seven vs Eleking, an Ultra monster that first premired in Ultraseven episode 3. Eleking has appeared in other Ultra series including Ultraman Taro, Ultraman Max, and Ultra Galaxy Monster Battle. Eleking is 51 meters tall and weighs 15,000 tons. Better watch what you eat.