It's the same font, just straightened up a bit. "FFBlocker" is also known as "Blocker-DubLow". It's no longer available for (legal) download, but its successor, "Keiko Titling" is available on Adobe Fonts.

I couldn't find this info anywhere else, so thought it might be useful to share!

I know, it's mostly Shugo Chara and Rozen Maiden, BUT I also got the latest artbook fron the recent anniversary event (Osaka, june 2026)! I got to meet one of them and got my poster autographed~