Level-up

*This page is referenced from Level-up from The Battle Cats fandom.*
**Level-up** is a feature that allows players to spend XP to improve Units and Base Upgrades. Level upgrades can be done by entering the Upgrade Menu, scrolling to the desired Unit or Base Upgrade and pressing the "Upgrade!" button.

## Explanation

All Units and Base Upgrades start at level 1. Each upgrade increases the level by 1. Leveling up a Unit will increase its health and attack power, while leveling up a Base Upgrade will make it more effective (e.g., leveling up the Study upgrade increases amount of XP earned after battle). The XP costs will increase with each upgrade until level 10, at which point they will become multiples of the first 10 levels' costs. This pattern continues all the way up to level 50. Every level-up will also raise the player's User Rank by 1 level.

There is a limit to how many times a unit may be upgraded. The level cap is initially 10, but it can be increased all the way up to 50 for most units as the player raises their User Rank and progresses through the game.

In addition to standard levels, many units can also upgrade to **+ levels** (also known as **(+) levels**). Each + level is equivalent to a standard level but counts toward a separate cap. + levels are attained by "using" duplicate Cat Units or Ability Capsules in Cat Storage; as a result, non-gacha cats can never upgrade to + levels.

Levelling up Cat Units can also unlock new forms: upgrading any Cat Unit to total level 10 will unlock its Evolved Form, and upgrading a Normal Cat to total level 30 (i.e., 20+10) will unlock its True Form. Other cats have a minimum level and additional requirements that must be met before their True Forms can be unlocked (20 for cats needing Awakening; 30 for cats needing Catfruit).

## Level Caps

### Base Upgrades

 Level 10
 Level 20
 Level MAX +10
 The Cat Cannon Range may not upgrade past level 10 or to + levels.

## Calculating Stats

Each Cat has an individual preset value for their base Health and Attack Power called an Initial Stat. This Initial Stat is used to determine the value of the cat's Health and Attack Power based on their current level - as shown below.

Each time cats are leveled up, they gain +20% of their initial stats, e.g. a level 1 cat with 100 HP will have 120 HP in level 2.

*Stats at level n = Initial Stat + (n - 1) \* (Initial Stat \* 20%)*

When the Koshin'etsu's Snowscape and/or the Kanto's Attractiveness are activated their effect gives a direct increase to the value of the corresponding Initial Health and/or Attack Power stat. This effect is independent of the growth rate calculation, which is used to determine a cat's health and damage at their current level

A neater expression of the level formula above, which includes the effect of the Treasure Bonus increase and does the same job is:

Stats at level
# n

⌊

round

(

Initial Stat
⋅

n
4

5

)

⋅
TB

⌋

{\displaystyle \text{Stats at level }n = \Bigl\lfloor \text{round}\left(\text{Initial Stat} \cdot \frac{n+4}{5} \right) \cdot \text{TB} \Bigr\rfloor}

* TB = Treasure Bonus Multiplier = 1.5, 2.0 or 2.5 at 100%, 200% or 300% respectively
* n is the cat unit level, as listed above; use this formula when n < m
* The symbols ⌊ ⌋ represent the floor function, which essentially removes any decimals from the number between them.

### Higher-Level Units and Level Reduction Points

For game balance the stats formula above that adds 1/5th (or 20%) of the Initial Stat to next level is tiered to add a reduced 1/10th (or 10%) of Initial Stat to next level for higher level units, then reduced even further to add just 1/20th (or 5%) of the Initial Stat per next level for very high level units at specific points, for certain types, as detailed below.

Gacha Cat is currently the only cat that doesn't follow this rule.

 Special Elite
 Bahamut Cat
(Special)
 Rare Elite
 Super Rare Elite
 Crazed Elite
(Super Rare)
 Uber Super Rare Elite

Here is an updated formula for high-leveled Cats between the 1st reduction point (m) and 2nd reduction point (p):

Stats at level
# n

⌊

round

(

Initial Stat
⋅

(

m
4

5

n
−
m

10

)

)

⋅
TB

⌋

{\displaystyle \text{Stats at level }n = \Bigl\lfloor \text{round}\left(\text{Initial Stat} \cdot \left( \frac{m+4}{5} + \frac{n-m}{10} \right) \right) \cdot \text{TB} \Bigr\rfloor}

* TB = Treasure Bonus Multiplier = 1.5, 2.0 or 2.5 at 100%, 200% or 300% respectively
* m is the first reduction point, as listed above; use this formula when m < n < p
* The symbols ⌊ ⌋ represent the floor function, which is explained above.

Here is the updated formula for very high level and hypermaxed Cats beyond the 2nd reduction point (p):

Stats at level
# n

⌊

round

(

Initial Stat
⋅

(

m
4

5

p
−
m

10

n
−
p

20

)

)

⋅
TB

⌋

{\displaystyle \text{Stats at level }n = \Bigl\lfloor \text{round}\left(\text{Initial Stat} \cdot \left( \frac{m+4}{5} + \frac{p-m}{10} + \frac{n-p}{20} \right) \right) \cdot \text{TB} \Bigr\rfloor}

* TB = Treasure Bonus Multiplier = 1.5, 2.0 or 2.5 at 100%, 200% or 300% respectively
* m is the first reduction point, and p is the second reduction point; use this formula when n > p.
* The symbols ⌊ ⌋ represent the floor function, which is explained above.

#### Applying the Equations (examples)

To illustrate how to apply the equations we provide you with a few examples, using Metal Cat, Vaulter Cat and Ramen Cat

Below we provide an understanding of the mechanics of the equation, calculated using Metal Cat's HP at level 7, 12, 13, 18 and 20 with maximum Koshin'etsu's Snowscape activated.

Treasure Bonus Multiplier = 2.5x

Below are examples using the simple equation for Vaulter Cat's HP at level 20, 25 and 40 with maximum Koshin'etsu's Snowscape activated.

Stats at level
# 20

⌊

round

(

450
⋅

24
5

)

⋅
2.5

⌋

=
5
,
400
 HP

{\displaystyle \text{Stats at level }20 = \Bigl\lfloor \text{round}\left(450 \cdot \frac{24}{5}\right) \cdot 2.5 \Bigr\rfloor = 5,400 \text{ HP}}

Here, Treasure Bonus Multiplier = 2.5, Initial Stat = 450, and (n+4) = (20+4) = 24.

Stats at level
# 25

⌊

round

(

450
⋅

29
5

)

⋅
2.5

⌋

=
6
,
525
 HP

{\displaystyle \text{Stats at level }25 = \Bigl\lfloor \text{round}\left(450 \cdot \frac{29}{5}\right) \cdot 2.5 \Bigr\rfloor = 6,525 \text{ HP}}

Here, Treasure Bonus Multiplier = 2.5, Initial Stat = 450, and (n+4) = (25+4) = 29.

Stats at level
# 40

⌊

round

(

450
⋅

44
5

)

⋅
2.5

⌋

=
9
,
900
 HP

{\displaystyle \text{Stats at level }40 = \Bigl\lfloor \text{round}\left(450 \cdot \frac{44}{5}\right) \cdot 2.5 \Bigr\rfloor = 9,900 \text{ HP}}

Here, Treasure Bonus Multiplier = 2.5, Initial Stat = 450, and (n+4) = (40+4) = 44.

Below are examples for calculating Ramen Cat's HP at level 25, 75 and 95, to showcase how to calculate the stats of a unit that surpasses 1st and/or 2nd reduction point, with maximum Koshin'etsu's Snowscape activated.

Stats at level
# 25

⌊

round

(

1050
⋅

29
5

)

⋅
2.5

⌋

=
15
,
225
 HP

{\displaystyle \text{Stats at level }25 = \Bigl\lfloor \text{round}\left(1050 \cdot \frac{29}{5}\right) \cdot 2.5 \Bigr\rfloor = 15,225 \text{ HP}}

Here, Treasure Bonus Multiplier = 2.5, Initial Stat = 1050, m = 70, p = 90, and (n+4) = (25+4) = 29.

Stats at level
# 75

⌊

round

(

1050
⋅

(

74
5

5
10

)

)

⋅
2.5

⌋

=
40
,
162
 HP

{\displaystyle \text{Stats at level }75 = \Bigl\lfloor \text{round}\left(1050 \cdot \left(\frac{74}{5} + \frac{5}{10}\right)\right) \cdot 2.5 \Bigr\rfloor = 40,162 \text{ HP}}

Here, Treasure Bonus Multiplier = 2.5, Initial Stat = 1050, m = 70, p = 90, and (n+4) = 74 which is greater than m, therefore (m+4) = 74 and (n-m) = 5.

Stats at level
# 95

⌊

round

(

1050
⋅

(

74
5

20
10

5
20

)

)

⋅
2.5

⌋

=
44
,
757
 HP

{\displaystyle \text{Stats at level }95 = \Bigl\lfloor \text{round}\left(1050 \cdot \left(\frac{74}{5} + \frac{20}{10} + \frac{5}{20}\right)\right) \cdot 2.5 \Bigr\rfloor = 44,757 \text{ HP}}

Here, Treasure Bonus = 2.5, Initial Stat = 1050, (n-1) = 94 which is higher than p, therefore (m+4) = 74, (p-m) = 20, and (n-p) = 5.

## Effect on Base Upgrades

* Cat Cannon Power - Increases Cat Cannon attack power by 50 and Cat Cannon recharge time by 50 frames per level.
* Cat Cannon Range - Increases Cat Cannon attack range. It starts at 3 Cannon waves (different that regular waves) and increases by 1 per level.
* Cat Cannon Charge - Decreases Cat Cannon recharge time by 50 frames per level.
* Worker Cat Rate - Increases the rate of income by 3¢ per second per level.
* Worker Cat Wallet - Increases the Worker Cat's wallet, increasing upper limit of income. Adds 100 starting wallet per level, +50 per Worker Cat level while in the stage.
* Base Defense - Increases the health of the Cat Base by 1,000 HP per level.
* Research - decreases Cat recharge time. It has no effect at level 1, but from level 2 and after, recharge time will be decreased by 0.2 seconds (at level 20+10, the recharge time is decreased by 5.8 seconds).
* Accountant - Increases the money earned when an enemy is defeated. It has no effect at level 1, but from level 2 and after, money drop from enemies will be increased by 5% (at level 20+10, the money drop from enemies is increased by 145%).
* Study - Increases the amount of XP received when clearing a stage. It has no effect at level 1, but from level 2 and after, XP will be increased by 5% (at level 20+10, the money XP received when clearing a stage is increased by 145%).
* Cat Energy - Increases the limit of Cat Energy by 10 per level.