Well you can try using a HEX editor, but IDA Pro has the advantage of having everything in a much more user friendly way, as well as the proper ARM opcodes and commands used.
Thanks! Pretty interesting digging, looks a lot like the multi menu after these configurables:
Mode............Type............Index...........Address.........MemAddress......Fixcode.........DelayFrame......FadeFrame.......DarkEnable0.....DarkEnable1.....ReduceEnable0...ReduceEnable1...MotionBEnable0..MotionBEnable1..Dark0...........Dark1...........ReduceColorR0...ReduceColorR1...ReduceColorG0...ReduceColorG1...ReduceColorB0...ReduceColorB1...MotionBlur0.....MotionBlur1.........Palette.O...A…U2C0......Input...Menu....AutoFireRelease.SwitchDelay.MenuDelay...AutoFireHold....timelog.capture.loading.dmggray.%s <ON>.%s <%d>.FRM.COR.CPU.CW0.CW1.CW2.SPA.WAT.SPG.RN0.RN1.RN2.msg.rom.net.pre.yes.lcd.red.ch1.ch2.ch3.ch4.file0...file1...file2...file3...file4...file5...file6...file7...file8...file9...cheat...vpad0...reset...green...vsync.......save....load....PDFURL..quit....back....server..client..next....no..saving..deling..blue....mask....filter..dark....reduce..normal..color0..color1..color2..color3..bg..obj0....obj1....Menu>ROM Switch.Do you want switch to this rom?.