ID:1670078
 
(See the best response by Nadrew.)
It only lets you use three options. Any way to make it more, or is just using an input list the preferred way?
Best response
As the reference notes, alert() can only use three buttons. However like you mentioned, you can use input() with a list, or you can make your own alert box using the game's interface, which would allow you to stylize the alert any way you wanted with as many options as you need.