This is the easiest way to play without a PS2.
They scrolled down. The usual tier names like "Getting the Band Together" had been replaced by local slang: "Ngeband di Garasi" (Jamming in the Garage) and "Panggung Besar" (The Big Stage). Guitar Hero Indonesia Ps2 Iso
The "Guitar Hero Indonesia.iso" file (usually found on community archive sites). This is the easiest way to play without a PS2