*scratches head* I guess my rarest would be a PSOne by the name of Azure Dreams...a kinda lame dungeon game that I only play when I really want to...it's cute but monotonous since the human's character level drops to 1 every time you leave the tower...and you can only have like, 20 items tops in your inventory, on top of only allowed to take up to, I believe it was 5, items in with you. You can only use 2 of your collected monsters at a time (also using up two of the allotted five entry slots), and it's a pain to even FIND an egg in the tower! Let alone find a teleportation crystal to let you get out without losing all your items (two ways out - crystal or get KO'd =3=) Plus, when your monsters get KO'd, you dont get the chance to heal them after they lose all their health or revive them or anything =3=
It's a cute distraction at least XD
I guess my PS2 game Gallop Racer 2006 is pretty hard to get too, it's like, the best horserace Sim game there is imo! There's plenty of challanges and detail (not looks wise, the horses tend to be quite similiar past markings and names), and it can get quite difficult to keep a the horse well-trained throughout it's racing careeer as well as attempting to collect titles.
I remember I had one mare lined up for the Triple Crown, and ended up entering her in a "training" race the week before >.< by the time I realized it's been too close to the final derby, I'd already saved over...tho I've sence deleted that file in favor of restarting since I've gotten used to the handling and such now.
I ramble too much X3