How many sprites will you have?

Depending on other resources needed, sprites can co-exist in the same bank of RAM as Hi-Res images. However, too many sprites and not all will coexist and would require memory swapping - moving sprite data around the 64K space (or alternate technique, i.e. bank switching).

Will you require a Hi-Res image? Yes

Hi-Res images require 8K of RAM and depending on required resources, can not exist in certain locations of a 16K Bank. For example, Bank 0 includes Zero-page and can not store Hi-Res image data.

Will you need the BASIC ROM? Yes

Will you need the KERNEL ROM? Yes