Akai Katana Shin achievements

Defeat 1st stage boss Hiiragi

Defeat 2nd stage boss Shumeigiku

Defeat the Goura M76 heavy tank in stage 2

Defeat the Gaimon tank in stage 3

Defeat the Fujiibara attack cruiser

Summon your guardian

Earn 600 000 000 points

Complete the game using the type 3 Shakevolt without continuing

Do a 256 hit combo

Defeat the Arakashi submarine in stage 4

Defeat 3rd stage boss Shakunage

Do a 128 hit combo