Hmm. I t seems that saving your game in the middle of a level doesn’t actually let you restart from that point next time. Which is a pain.
That meant I had to redo the whole level, but at least they’re not too long. Got a few more things from the vending machine (including a new outfit and a new guitar, the latter of which spits out fish – no really). The boss at the end was a big TV screen, and was pretty difficult, but I managed it in the end.