The first thing I noticed during the introduction to the game was that both DS screens were showing, in real time, simultaneous actions. The facial expressions of the characters on the top screen added nuances to the characterization, while the backgrounds and the full-body character animations on the bottom screen showed the main plot unfold. I was impressed and my interest was piqued from the start.
The 'point-and-click' nature of this type of game lends itself well to the DS stylus. As you touch the screen and drag the stylus, points of interest fade in as you get closer to them. If you touch a rotating circle of interest you will be presented with multiple actions such as pick-up, examine, talk to, etc. To select your desired action, just drag the stylus to the option you want and then release. It works brilliantly and prevents you having to tap the screen constantly.
Puzzles in the game are presented on the bottom screen in first person and you must use the stylus to solve them. You'll drag blocks around, turn dials, move pieces – all with the stylus. It is a tactile and satisfying way to interact with the game.
Other puzzles require the use of items from your inventory to solve them. The inventory is also easy to use; you drag and drop items onto each other to combine within your inventory, or drag them out of the inventory to use them with objects in the game world. Using objects from your inventory is the key to advancing in an adventure game like this, and the system used here is the cleanest and easiest to use I have seen in a while.
There are multiple solutions to some puzzles which allow the player a certain degree of freedom and makes it less likely that the player will get 'stuck'. You will be able to combine objects in different ways, and use entirely different objects in novel ways to solve the same puzzle.
However, if you do get stuck on a puzzle Broken Sword incorporates a hint system that is similar to the one found in Professor Layton - the more hints you use, the less score you receive. This also alleviates the need to revert to the try-every-object-with-every-other-object trial and error form of puzzle solving that some of the more esoteric puzzles in this game genre sometimes require. This is a good thing.
As you play, Broken Sword keeps a Game Journal for you. It is a textual summary of what you have done so far. It contains hints, notes and observations which will also be useful if you are stuck, or haven't played in a while and need to get up to speed with what is going on or what you need to do next.