I stumbled on this app today, pretty cool: Argue in Chinese on iTunes
There are basically a few dozen phrases set in the app which can be spoken but the best part is that regional variations are present also, including Sichuanhua! I think there’s an Android version available also, free as well. Unfortunately pinyin isn’t included, but I learned some new phrases just by reading the characters. Hopefully the developer adds pinyin in an update, but even if that doesn’t happen this is pretty cool to hear/learn some Sichuanhua.