Here's something annoying.
I bought a brand new Iron Soldier 2 cart from Telegames UK (silver label limited edition) a few months ago. Having played it for several hours I've noticed the save game feature doesn't work. It saves the level you're on whilst the console is powered up but as soon as I switch off and reboot the game all the save data is gone!?!?
I've tried doing the cartridge memory erase in case that was the problem. No better.
Is this a quirk of the cartridge port of have I got a duff one?