 The sequences with Urutoraman fighting proved to be so expensive to  film, that the producers needed a way to limit the scenes to only a  few minutes for each episode. The solution was to give the character  the weakness that he can not survive in his true self for more than  roughly three minutes before he runs out of energy. This is marked  with his warning chest light, called the Colortimer, which begins to  blink with increasing speed as his energy runs out.