It is stated that Buddha said that it is more difficult to achieve nibbana in this realm than in the human realm (due to absence of suffering).

Imagine, that one of these gods, has realized that in fact he is "stuck" there and want to achieve nibbana and get out, even more, he created a whole reality where he "lives" similar to the human realm.
This god did this because experiencing suffering, (even in this "simulation"), it will be easier to look for the exit out of samsara.

Imagine that this god realizes that he's created all that, 
what should be the next steps for those kind of gods, (which actions or intentions), to follow Dharma and finally exit the samsara?

Should he assume a "human form" just to follow Dharma or should he do it "from" the same "gods realm" "perception" ?

Sorry if the question is too "fictious" or not understandable, let me know if you need more clarification.

thanks.