This is a Japanese anime from the 1990s, in which there are three robots -- green (wind element), blue (water element), and red (earth element). They transform into, oddly, full-sized heads. Halfway into the series, each were "reborn" into a powered-up version of themselves. The red one became more white than red. To call for their robots, the kid pilots used: 1) Bow and arrow (for the green robot) 2) Spinning top on water (for the blue robot) 3) And a disc that comes out of a gun (for the red robot) Each of these things made a pentagram on the water, and their robots rise out from it. Also, the pilot of the blue robot had rabbit ears he conceals. Can anyone help identifying what this series is?