Well, a new sprite game is out on JP-dlsite, named ARUSLANE. No release on Eng-DLsite so far.
http://www.dlsite.com/maniax/work/=/.../RJ205914.html
From the looks of it, a fairly standard R.O.R game with a variety of monsters (Imps, demon bunnies, caterpillar things, bright blue werewolf...