I would first question to know if I am dreaming or if this is an hallucination, for an Omnipotent being to appear in front of a random person would lead to the same conclusions, most of the times. I would then question of the reason such an immensely powerful figure would appear before me and to what honor I owe for the visit. If I have incurred its wrath, then i will go willingly, but if there is something he wishes for me to do or accomplish, then I would ask some following questions like: Why me? What is the task? Will I receive support in terms of abilities, items, system, or etc. to help me with this endeavor? Also if he permits, i would ask if I could receive a reward for finishing the task? All these rely on the being, but if he said yes to the rewards, I would ask for the option to travel through the omniverse of anime/manga,tv shows, comics, light novels, and etc. with 3 wishes if he permits or a wish is okay. It will be harrowing and rather humbling to be in his sight and would really help me to see the world in a unique way more than what I see it as now.