playing the GBC roms

[immat]

so i just put rockbox on my gigabeat f40, and i love it. it took along time but i got it to work. then i found out you can put GBC roms on it and i was super excited to get some on. i put pokemon crystal in the same folder as the rest of the GBC files, but i cant get to them when im on the gigabeat. does anyone know how i can get to them? do i need a new build or what? thanks in advance
mat

EDIT:

ok i figured it out, i had to move that folder to the root.

but alot of the games seem to be unplayable, missing buttons, no up and down ect. ex-im pokemon i cant get the section to go up or down. anyone know if there is a way to fix this? or if there are only certain games that work?
anyone know what games are good on a gigabeat?
thanks.

btw, im not asking for the roms, just titles of games that work.

[Strife89]

Forgive me for these stupid questions , but have you tried reconfiguring the buttons yet? How many buttons does the Gigabeat have, anyways? (The Gameboy had 8 - the d-pad, select, start, a, and b.)

[miles_power]

when your in the game activate the menu using the hold button go to the options and you can configure the buttons there.

[melancholydm]

any gb and gbc roms should work