[pal][ntsc-u][ntsc-j][iso]: Akai Katana

is a side-scrolling "bullet hell" shoot 'em up (shmup) developed by CAVE . Your text refers to the different regional releases and the file format (ISO) often used for emulation or disc backups. Regional Versions

: Physical editions are available from retailers like Limited Run Games . Akai Katana [PAL][NTSC-U][NTSC-J][ISO]

The game was originally released on the in 2011/2012, which was region-locked. is a side-scrolling "bullet hell" shoot 'em up

: The North American version, also released in 2012. also released in 2012.