It started as Block Crash 123!! on the PSP in 2010.
The "CIA" in your query refers to the file format used by homebrew and custom firmware for installing digital content. Because the game was exclusively released in Japan , western fans often rely on these digital backups and fan-translations to experience it. It remains a cult favorite for its high-quality character art and surprisingly addictive, sometimes brutal, block-breaking levels. Hello Kitty to Issho! Block Crash Z 3DS (JPN) CIA
The game belongs to the (With Hello Kitty!) project, which launched in 2009. The goal was to feature "Super Kittylers"—human characters who are obsessed with Hello Kitty and wear fashion inspired by her. It started as Block Crash 123