Ikaruga Achievements Here is the full list of all 25 Ikaruga achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc Flag Filter All None 25 Online/Offline 25 Single Player 25 Cooperative 15 Stackable Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply EboshidoriDestroy Chapter 1 Boss: Eboshidori. BuppousouDestroy Chapter 2 Boss: Buppousou. UzuraDestroy Chapter 3 Boss: Uzura. MisagoDestroy Chapter 4 Boss: Misago. TageriDestroy Final Chapter Boss: Tageri. Grade A (Chapter 1)Complete Chapter 1 in any mode with a grade of A or better. Grade A (Chapter 2)Complete Chapter 2 in any mode with a grade of A or better. Grade A (Chapter 3)Complete Chapter 3 in any mode with a grade of A or better. Grade A (Chapter 4)Complete Chapter 4 in any mode with a grade of A or better. Grade A (Final Chapter)Complete the Final Chapter in any mode with a grade of A or better. Grade S (Chapter 1)Complete Chapter 1 in any mode with a grade of S or better. Grade S (Chapter 2)Complete Chapter 2 in any mode with a grade of S or better. Grade S (Chapter 3)Complete Chapter 3 in any mode with a grade of S or better. Grade S (Chapter 4)Complete Chapter 4 in any mode with a grade of S or better. Grade S (Final Chapter)Complete the Final Chapter in any mode with a grade of S or better. Grade S++ (Chapter 1)Complete Chapter 1 in any mode with a grade of S++. Grade S++ (Chapter 2)Complete Chapter 2 in any mode with a grade of S++. Grade S++ (Chapter 3)Complete Chapter 3 in any mode with a grade of S++. Grade S++ (Chapter 4)Complete Chapter 4 in any mode with a grade of S++. Grade S++ (Final Chapter)Complete the Final Chapter in any mode with a grade of S++. One coin clearClear the game in any mode without using Continue. Dot Eater !Clear a certain chapter in any mode without shooting at all. Ikaruga & GinkeiComplete one chapter in any Co-op mode without using Continue. Ikaruga & Ginkei 2Complete three chapters in any Co-op mode without using Continue. Ikaruga & Ginkei, One coin clearClear the game in any Co-op mode without using Continue.