Do I need anything else for my birthday party?

So, I’ll be having my birthday at an arcade type place. It’ll be a private party and so it’ll just be me and my guests. Since I’m the type to over-worry, I just wanted to make sure I’ve gotten everything I need for it. For my income, the rent is quite expensive to me, so for food, I’ll only be supplying the cake and drinks.

So, I’ll be bringing along a cake or two, a knife to cut the cake, forks, napkins, plates, cups, the drinks, a lighter and candles. Am I needing to bring anything else to my party?