Video Game Dilemma

[batgirl]

Ok, so here's the deal:

My mom loves video games, RPGs to be exact, but she's really particular with what she likes. We have a PS1 and it's become increasingly difficult for me to find her new games to play due to the fact that most PS1 games are hard to find and we own a good chunk of the RPGs to begin with. My mom refuses to get a PS2 until we have exhausted every option. So here's where you all come in: I need suggestions of games that I can find and buy for my mom for the PS1. Here is a list of all the games we currently have:

FF7-9
FFT
Legend Of Dragoon
Alundra 2
Suikoden 1-2
Chrono Cross
Breath of Fire 3-4

Now here are the particulars to what she likes: Cartoonish looking characters, lots of secrets, and I kid you not, Shiny Treasures.

If anyone has any suggestions of games that would fit this criteria that are fairly easy to get and won't cost me an entire paycheck, I would be eternally grateful to you.