I tried this at the bus stop. First you are shown photos and words/phrases, then quizzed on them. The quiz challenge makes you want to play. Plus, it repeats (but painlessly, not through a drill) which makes it work. I played for 10 minutes. It's 4 hours later and I can still remember how to say the following words: fish, bird, bear, run, walk, sit, stand, man, woman, boy, girl, plate, helicopter, bread, cheese, purple, and fly. Not bad for someone who knew no French this morning!