Play Books or Game Books[1] refer to a set of consumable and non-consumable items introduced in Sengoku Basara 4. Their effects are many, and they can modify the gameplay to the player's liking. They are usually obtained either as rewards from battle or they can be bought from the in-game shop.
Enemies gradually regain their hit points, but if victorious you receive a 200% bonus to money earned.
8,000
Double Enemy Hit Points 敵体力倍増
Enemy hit points are doubled, but you receive a 50% increase to your performance evaluation.
8,000
Gamble ばくち打ち
Grants a +4 bonus to money acquisition, but your funds halve whenever you take damage.
8,000
Resolve to Risk Your Life 捨て身の覚悟
P1 and your battle comrade (P2) gain 4x attack power, but take 4x more damage from enemies.
8,000
Fifty-Fifty 五分五分
Damage received from enemies is halved, but you only receive half of the rewards after the battle.
5,000
Money Conversion 小判転化
All experience points and Inrou boxes from defeated enemies become money, but you will be unable to gain experience or add it to your Inrou during the battle.
10,000
Gather Inrou 印籠あつめ
The rice balls you receive during battle become Inrou experience instead.
10,000
Emphasis on Hassle 手数重視
The attack power of P1 and your battle comrade (P2) is halved, but attacking enemies grants +2 hit count.
8,000
Backwater Guidance 背水の導き
You start the battle in near-death status and gain 3x attack power when you're near death.
8,000
First Campaign 初陣のとき
P1 and your battle comrade (P2) start the battle at level 1, and experience earned goes into your Inrou. You also receive a 50% increase to your performance evaluation.
8,000
Play Book
Effect
Cost
Slayer of Generals 大将殺し
Doubles your attack power when fighting an enemy commander.
8,000
Double Hit Points 体力倍増
Grants double hit points to P1 and your battle comrade (P2).
3,000
Random Criticals 会心乱発
Triples the chance that P1 and your battle comrade (P2) will score critical hits.
8,000
Quick Style 粋早々
Your Style gauge fills twice as quickly, but the duration of your Maximum Style effect is halved.
10,000
Fugitive Hunting お尋ね者探し
Displays the position of fugitives on the map. If there are no fugitives, this book has no effect.
5,000
Full of Energy 気力満々
You start battle with MAX Style and Basara gauges.
10,000
Turret Expert 砲台名手
The attack power of weapon systems is increased and it becomes harder for them to overheat. In addition, the time taken to recover from overheating is reduced.
3,000
Steel Body 鋼のからだ
Enemy attacks will not stagger you.
8,000
Complete Mastery 免許皆伝
You start the battle with access to all of your special moves and unique abilities. In addition, they'll all be at maximum level and have slightly raised attack power.
10,000
One-time Resurrection 一度だけの復活
When either P1 or your battle comrade (P2) is incapacitated, they'll instantly be brought back to life once.