In the cheats section, it's said that I can obtain the botique key by beating the game in under than 7 hours with less than 30 saves. I've done it in 4 hours with 7 saves and I don't have the key in my inventory.
Also, it's said that killing Nemesis will result in him dropping items. I have not found one of them.
Are these cheats specific to a certain version? I'm just wondering if they're meant for the PS1 or if they also include the Dreamcast. I bought this game used and it has all the costumes available, but shouldn't I still be able to get the key or already have it?