Haze has continued working on Deroon Dero Dero since Nuapete’s protection work, improving the sprites (still missing zoom, and some priority / layer stuff) and adding preliminary support for the other layers. It appears that (at least) one of the Deroon sprite roms currently recognised by MAME is a bad dump however, which is causing some missing graphics. The game itself is a nice original variation on the classic ‘Puyo Puyo’ theme.

(missing graphics on shot below due to bad rom)

The improvements also helped Angel Eyes, although Background layer scrolling (which is more important for this game) might be tied to an unemulated part of the protection, as I don’t seem to have valid scroll values to work with.