Mighty Flip Champs! DX (.anb)

I have a dump of Mighty Flip Champs! DX for PSP. It seems sprites are stored in the .anb format. However, I can't get any .anb tools to work on them. It also contain's .tex files, and the same goes for them. What do I do?

Here's a .anb file.

Here's a .tex file.