AllFive XP Game Types
AllFive XP features four different ways to play the classic game, two of which are unique to AllFive.
Standard
As you know and love Yahtzee.
Contract (Exclusive to AllFive XP)
Exactly the same as Standard except that you are not going for the highest possible score, but are aiming instead to hit a "contract" score that you declare before you start. This must be at least 150 points but can be as high as you like if you're feeling daring!
Percentage (Exclusive to AllFive XP)
Instead of each box having a fixed value, scores are calculated as a percentage of the current Grand Total - so scoring in a high box earlier on in the game is not as advantageous as the same box later on! For example, if your total stands at 250, a score of 20 will come out as 20% of 250, or 50 points. It should be noted that the Upper Section Bonus and AllFive Bonus are also awarded this way, as 35% and 100% of your total respectively, at the time they are awarded!
Double
Each player has two columns, the second being worth twice as much as the first. You may score in any column with any throw, but it's best to reserve the Doubled column for your larger and more impressive scores!

