relokick is usefull for older games: boot with relokick then insert the game disk and it'll emulate kickstart 1.3 ala A500. Kickstart 2.0 is of no use to u, I assume u have 3.1 installed on your HD. HDToolbox has nothing to do with games on HD. For that it's WHDLoad. WHDLoad and installers for various games are on aminet, many games though require the registered version of WHDLoad to work, so read the guide from the WHDLoad archive of how you can get registered.
