Why is it that there's different menu items? Like there's ice cream and octopus balls and such at times and then other times its not even on the menu.

Seasonal

Not even those.. their dinner menu are totally different. All you can it & all you can it and drink are different menu. You need to make sure which one you want to have

Depends on what time of the day you go. Lunch menu is not as inclusive as their dinner menu. Dinner starts at 5:30 pm and it includes much more options, such as all the desserts, ice cream.