Ikaruga Extra continues
One additional continue will be unlocked after each hour of accumulated game play. Infinite continues will be unlocked after eight hours of total game play.
Prototype mode and leaderboards
Successfully complete the game to unlock Prototype mode with leaderboards.
Dot Eater leaderboard
Successfully complete a level without shooting or dying to unlock the Dot Eater leaderboards as well as the “Dot Eater” achievement.
Easy “Dot Eater” achievement
Select Chapter 1 on the Easy difficulty. Enter the settings, and set continues to off and lives to 5.
Steam achievements
Successfully complete the indicated task to unlock the corresponding achievement. To view your achievements and stats in Steam, select “Community”, “My profile”, “View all my games”, then the game and view stats.
- Buppousou: Destroy Chapter 2 Boss: Buppousou.
- Dot Eater !: Clear a certain chapter in any mode without shooting at all.
- Eboshidori: Destroy Chapter 1 Boss: Eboshidori.
- 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++.
- Ikaruga & Ginkei: Complete one chapter in any Co-op mode without using Continue.
- Ikaruga & Ginkei 2: Complete three chapters in any Co-op mode without using Continue.
- Ikaruga & Ginkei, One coin clear: Clear the game in any Co-op mode without using Continue.
- Misago: Destroy Chapter 4 Boss: Misago.
- One coin clear: Clear the game in any mode without using Continue.
- Tageri: Destroy Final Chapter Boss: Tageri.
- Uzura: Destroy Chapter 3 Boss: Uzura.