halo 2 just bacame a platinum hits title.will it playon 360 arcade?

on the top of the case it says it is playable on 360.it is even listed on the xbox site under 360 platinum hits.do i still need a harddrive???
on the top of the case it says it is playable buy drugs online on 360.it is even listed on the xbox site under 360 platinum hits.do i still need a harddrive or will it play without it?