Ikaruga - Platform: XBox 360 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. Achievements: ------------- Accomplish the indicated achievement to get the corresponding number of Gamerscore points: Target: Eboshidori (10 points): Destroy Eboshidori. Target: Buppousou (10 points): Destroy Buppousou. Target: Uzura (15 points): Destroy Uzura. Target: Misago (15 points): Destroy Misago. Target: Tageri (15 points): Destroy Tageri. Good grade (20 points): Complete Chapter 1 in any mode with a grade of A or better. Fine grade (20 points): Complete Chapter 2 in any mode with a grade of A or better. Excellent grade (20 points): Complete Chapter 3 in any mode with a grade of A or better. Stellar grade (20 points): Complete Chapter 4 in any mode with a grade of A or better. Star player (20 points): Complete the Final Chapter in any mode with a grade of A or better. Unstoppable (25 points): Clear the game in any mode without using Continues. Dot Eater (10 points): Clear a certain chapter in any mode without shooting at all.