More levels!
I like your Wiggi series very much. I like your graphic design and the music you select. On this submission, I would like to see more levels. The replay-ability is pretty low, considering there are always 15 items, and they always go in the same locations. I'd like to see different scenes. For example, maybe a kitchen scene, a garage, backyard, etc.. I would also suggest making each level get harder as the person goes along. For example, the first bedroom scene you have 60 seconds to get all 15 items. Maybe in the next level, you would have either 60 seconds to do 17 items, or 50 seconds to get 15 items.
Just play around with it and see what works best. I think you could make a great game here with more levels! Keep up the good work!