Vgmusic.com is hands-down the largest and best resource online for free polyphonic midi ringtones. They’ve got thousands of songs from tons of systems, from ColecoVision to NES to PlayStation 2!

All you really need to get these on your phone is a $10 datacable or a bluetooth connection. Sometimes emailing ringtones to your phone works too, but that’s a little hit-and-miss, depending on your phone and provider.