I've download all Chankast v0.25, v0.2, dc_bios.bin, Ikaruga rom( a "RAR" file 17.3mb) and Demon toos v3.29. Then, I extracted all the files to a folder, but I couldn't play the game.
First, I thought Chankast v0.25 was not suitable for my PC, then I replaced the files with Chankast v0.2...