I LOVED GameArts, but they were really at their best when they had a relationship with SEGA. Games like Alisia Dragoon, Silpheed, Lunar 1 & 2, Gungriffon 1 & 2, Grandia 1 & 2 were classics. GameArts really shined with Sega and when Sega dropped out of the hardware market GA seemed to loose a lot of their creativity, innovation and talent. This coupled with the passing of one of their founders a while back really hurt them.
As for Bullet Witch... Yep that is what my signature is from. I started a thread about it on here years ago. I am by far in the minority and I am well aware of this, but Bullet Witch is THE reason that I bought and still own a 360. Most current gen games that I play, I enjoy, but I don't have a strong passion or love for them like I did back in the 8/16/32 bit days. Bullet Witch is one of the best games I have ever played and easily one of my favorite games of all time. I love everything about it and it really embodies what I love about Japanese games.
It got terrible reviews, but I personally think they are unwarranted. I love how fluid the controls are and it makes all the acrobatic moves and spell casting of Alicia that much more fun to perform. Its got great graphics, destructible environments, awesome level and character designs, a dark story and a very well done soundtrack. I also love how over the course of the game you slowly upgrade and unlock your guns and spells. This carries over each play through, so by your third play through your like a goddess slinging spells left and right and mowing down the enemies with your arsenal of weapons. It's an awesome feeling to bring down a lightning bolt or a tornado and destroy a giant building and have it crush the enemies. I absolutely LOVE it! It's just so much fun...... for me. Like I said. I am certainly in the minority.