hi all - been lurking for a while and playing DK on a raspberry pi running retropi,using the lr-mame 2003 mame emulater. I seem to be maxing out at various stages on Level 5 or 6, mostly due to patience/timing errors (yes, watched the videos linked from other posts which are fantastic and in theory understand what to do), so am at the point where I need/want to be able to save and load level 4 or 5 barrels and elevator stages to practice. Does anyone here have experience with mame on retropie and is there a version that allows for saving levels? I've seen some info that says in theory it works but cannot get it to work for me. thanks!