FS-0O

FS-0O is an Auxillary Buster Vehicle made by Jin Masato. Like the rest of the Buster Vehicles it can turn into Machine and Animal modes. Its chief form is FS-0O Frog. It has powerful underwater headlights as well as attack missiles which it can use with every mode.

Buster Animal FS-0O Frog
The Buster Animal mode of FS-0O, the FS-0O Frog has a boxing glove tongue that acts as a tethered projectile.

Buster Machine FS-0O
Buster Vehicle FS-0O: When in "auto-navigation" mode, it can travel the city on its own. In interface mode with Enetan, it is in Buster Machine mode.

Go-Buster KeroOh
FS-0O can combine with Tokumei Gattai Go-BusterOh by replacing RH-03 to form Go-Buster KeroOh. The FS-0O's gyros form the arms of the robo.