Title says all. I was browzing the PSOne downloads in the PSN Store the other day, when I came across the new Japanese Imports section. One of those games, Dezaemon Plus, claimed that you could make your own top-down shoot em' ups. I looked at a few gameplay videos, and it looked really flexible.

Since I cannot find a single review, is it worth it? For example, are they any limitations to keep in mind, besides being in Japanese, obviously?