Button Guide

[Resonance]

I'm new to this and I tried playing Kingdom Hearts. The screen is all black and so I checked the forums about this game. I found out that only the menu doesn't load but the game is playable for the most part. The only problem is I don't know how to get to the game.

I don't know which buttons to press to start playing the game. I don't even know which buttons correspond the which keys. I checked the forums for help and all I can find are posts about wanting a key configuration. I checked the toolbar of the emulator and didn't see anything that would tell me the keys. The main ppsspp.org page doesn't seem to display anything about that either.

Can someone help me figure out the keys?