There are also 'helper items' which upgrade your figure (meaning you can take one more hit) or the 'auto-target' helper item, some of the things shoot missiles at you, etc.
But that's basically it. And I love the game. I've already nearly finished it, but boy is it trippy! It's kind of short, so probably not worth the full EUR 70, but if you can pick it up second-hand, go for it!
Friday, we went to 'The League of Extraordinary Gentlemen'. Fun movie, that, though a bit slow on getting started. It would have been a kick-ass Castle Falkenstein game. If you like Steampunk and you have two hours of free time, go see it.