i had played my cousin's sims 2 castaway on the wii, which was entertaining, so i got it for the DS ... i beat it in a day and it was extremely cropped down from the wii version.
i ended up finishing the game and going "oh ... thats it?"
step 1: find the right combo of pins that suit you
step 2: keep the top screen on auto until you are proficient in kicking ass in the bottom screen with said pin combo
step 3: learn to multitask by controlling both top and bottom at the same time
its possible to complete the game with...