Seen this on various forums, looks interesting.
PS3's PS2NetEmu held a secret button combo. Credits to Picard and his skills. See below for how it works!
Load a game using PS2 Net Emu
Hit the Home Button
Hold L1 + R1 + D-Pad Left + Square for a few seconds (5-10 is nice)
Hit the Start Button
And 2 options will be added to the menu as well as other information
Applies for all PS2 games loaded with Net Emu.