I just thought they might be able to make a few more interesting challenges with hidden keys and items. Nothing too vital as no one wants to pixel-search. Searching for a key is a viable alternative to lockpicking, but it's too easy to hit ALT and have the key given to you. It's just me being pedantic. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />
I can see your PoV, but many good adventure games have been marred by pixel hunting, and seriously, the ALT key to me is a godsend. Remember in Diablo I everytime you stifles with excitement and go all over the screen with your mouse when ever you heard a metallic twink? Perhaps it is the Constricting Ring! Or a powerful magical amulet. And there you go, mouse soughting it out in the dark. Ah, there it is!
And now with just a key press, that ritual is long over. It is almost an essential, defacto, standard issue, feature.
A game like DD will be nightmarish without the ALT key. Items could be lying on a shelf, on a bed, or on a table and you couldn't see it because it is so small, like a small key hidden among the bushes.
At any rate, BD so far have managed to hide puzzle-related items quite well. The ALT key don't show the cracks, the iron bar, the writings on the wall and the talking skull. I got quite a pleasant surprise when the skull actually do speaks!
As to what else could the designer do, well, there's a certain game where a character has a 'search' skill. Basicially, it makes hiding places 'sparkles' if the character is within range. One way to make it more usable is to make characters use it automatically and give it only a certain chance of success per frame (quite low, say 5% per frame). However, the drawback to this is players don't need to be actively searching to find secrets! Any idea is to make it a toggable skill - i.e, it makes all hidden triggers light-up when the skill is used. It shall consume some Stamina, has a lag-time and etc. to prevent the user from using it all the while (maybe a recharge meter could be employed).
At any rate, those are just but some ideas and rants. Game on!