Newbie help

[Ladyfreedom]

Hi everyone! This is the first emu that I've ever tried out on my own, and it seems I have messed up. I was trying to play l0c0r0c0 and it was having problems after the select language option. I thought that maybe if I changed some settings, it would work. I tried changing the resolution. Sooo now, I can't even get back to the settings because every time I load the app, everything is in big fat wide squished letters, and I can't scroll horizontally, or vertically. I've tried deleting data, force stop, uninstall, reinistall, but the settings are saved on my device and always stay that way no matter what I try to do. Is there any way I can fix this? Or have I just flushed my dream of being able to play locoroco on my device? TIA