You will earn an extra continue for each hour of game play. You will earn infinite continues once you play the game for eight hours.

To unlock Prototype mode with leaderboards, complete the game.

To unlock the Dot Eater leaderboards, beat a level without shooting or dying.

Choose Chapter 1 on Easy mode, then enter the settings and set continues to off and lives to 5.

ACHIEVEMENT - HOW TO UNLOCK
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) - Beat Chapter 1 in any mode with a grade of A or better.
Fine grade (20 points) - Beat Chapter 2 in any mode with a grade of A or better.
Excellent grade (20 points) - Beat Chapter 3 in any mode with a grade of A or better.
Stellar grade (20 points) - Beat Chapter 4 in any mode with a grade of A or better.
Star player (20 points) - Beat the Final Chapter in any mode with a grade of A or better.
Unstoppable (25 points) - Complete the game in any mode without using Continues.
Dot Eater (10 points) - Complete a certain chapter in any mode without shooting at all.