The Grand Cross Bomb belongs to any of the three Rahu sets and is one of the only Rahu parts which is not upgraded. When used it launches four bombs to the upper left, bottom left, upper right, and bottom right of the targeted robo within short arcs. The bombs explode releasing large pillar explosions. Caution should be used when using this bomb when mobile: without practice you may run into the blasts yourself. Unlike most bombs however, pressing the bomb button without moving the reticule will not launch the four bombs forward, but launch one bomb in front, behind, and to the left and right sides of the user.