The Wii version is just as difficult, though now it's because the actual mission is difficult instead of having to select your tool.

Part of the DS's difficulty for me was finding the tool to use on the touch screen, then touching it, then going back to where I was supposed to use it. Especially in those speed missions, it took way too much time.
2nd Opinion has all of the tools set to one of the 8 directions of the Nunchuk stick, and once you memorize where each one is it is a lot easier to switch between them. The challenge then comes from the game itself, instead of the interface.

That said, I have no tips on this particular stage, cuz I can't remember what happens :P