Here are some little animations of minor planets passing through some of the crowded star fields in the MOA database. The images are difference images, meaning that the images of stars have been subtracted away. What you’re looking for in each of these animations below is a moving dot — an asteroid moving through the field.
Each one of these images is 1 / 640 th of the total field of view of one of the MOA-II telescope’s fields. And MOA observes 22 fields towards the Galactic Centre. I found these by eyeballing the images. Working on a better way.