transformatons for humans are easy to create copy the ssj increase the stats ssj2. change the aura color to red or blue ssj god ssj blue
the same cant be said for the other races more complicated things would be involved and specially nameks would require some thinking for new trsnsformations.
Nothing's impossible for a good coder and since Daneos actually managed to revive DBO, I'll highly assume he is one
not entirely true, if you want to create new areas u gonna need designers and probably more stuff we dont even know about is involved
code doesnt create the graphics characters etc. after the design is done the code brings it to life.