it's quite simple really build rahi there aren' t many rules
the rules are
It must fit on okoto and look like lego could actually put it out as a set You can use Technic.
2 It requires some sort of gear function
and 3 have fun!
All i want is you to make it fit
Oh and there is one more optional limitation
You can use G1 parts but make sure they were used in 2001-2003
you don't have to do this you can go beyond that but i encourage early parts MOCS