> For the complete documentation index, see [llms.txt](https://litepaper.metamerge.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://litepaper.metamerge.xyz/gameplay/evolve/upgrade.md).

# Upgrade

### The o**verall logic of upgrades:**

1. When the pet reaches the maximum level, it needs to be merged in order to continue upgrading.
2. When the pet reaches a certain level, it needs to rise in rank to continue upgrading.
3. When the pet reaches <mark style="color:purple;">**S**</mark>**-**⭐️⭐️⭐⭐️, it needs breakthroughs to continue upgrading.

### &#x20;**📈 Level**:&#x20;

The level up feature will be unlocked after passing storyline level 40. After leveling up, the pet's attack power and HP will be increased, and more powerful skills will be unlocked.&#x20;

When the pet reaches the level, it needs to be [merged ](/gameplay/evolve/merge.md)to improve its star-rating in order to continue upgrading.

**Relationship between star level and level limit**

<table><thead><tr><th width="283">Pet</th><th width="154.33333333333331">Level Limit</th><th data-hidden>$MMM</th><th data-hidden>Other Costs</th></tr></thead><tbody><tr><td><mark style="color:green;"><strong>B-</strong></mark>⭐️</td><td>20</td><td>0</td><td></td></tr><tr><td><mark style="color:green;"><strong>B-</strong></mark>⭐️⭐️</td><td>30</td><td>0</td><td></td></tr><tr><td><mark style="color:green;"><strong>B-</strong></mark>⭐️⭐️⭐️</td><td>40</td><td>0</td><td></td></tr><tr><td><mark style="color:blue;"><strong>A</strong></mark><strong>-</strong>⭐️</td><td>50</td><td>0</td><td></td></tr><tr><td><mark style="color:blue;"><strong>A-</strong></mark>⭐️⭐️</td><td>60</td><td>0</td><td></td></tr><tr><td><mark style="color:blue;"><strong>A-</strong></mark>⭐️⭐️⭐️</td><td>70</td><td>0</td><td></td></tr><tr><td><mark style="color:blue;"><strong>A-</strong></mark>⭐️⭐️⭐️⭐️</td><td>80</td><td>0</td><td></td></tr><tr><td><mark style="color:purple;"><strong>S-</strong></mark>⭐️</td><td>90</td><td></td><td></td></tr><tr><td><mark style="color:purple;"><strong>S-</strong></mark>⭐️⭐️</td><td>110</td><td></td><td></td></tr><tr><td><mark style="color:purple;"><strong>S-</strong></mark>⭐️⭐️⭐️</td><td>130</td><td></td><td></td></tr><tr><td><mark style="color:purple;"><strong>S-</strong></mark>⭐️⭐️⭐️⭐️</td><td>150</td><td></td><td></td></tr><tr><td><mark style="color:purple;"><strong>S</strong></mark><strong>-</strong>⭐️⭐️⭐️⭐️⭐️</td><td>240</td><td></td><td></td></tr></tbody></table>

###

### **📈 Rise Rank:**&#x20;

Pets need to rise in rank to continue upgrades after reaching a certain level.&#x20;

spMMM will be needed to proceed with the action of rising rank.

**The level that triggers rank rising:**

<table><thead><tr><th width="221">Rise Rank Level</th><th>Spend of spMMM(Assuming the price of $MMM is 0.0037$).</th><th data-hidden>Cost ($MMM)</th><th data-hidden>Cost (BNB)</th></tr></thead><tbody><tr><td>20</td><td>2440</td><td></td><td></td></tr><tr><td>40</td><td>4060</td><td></td><td></td></tr><tr><td>60</td><td>6490</td><td></td><td></td></tr><tr><td>80</td><td>12170</td><td></td><td></td></tr><tr><td>120</td><td>22710</td><td></td><td></td></tr><tr><td>140</td><td>34060</td><td></td><td></td></tr><tr><td>160</td><td>61630</td><td></td><td></td></tr></tbody></table>

{% hint style="info" %}
Note: The Spend of spMMM will fluctuate with the price of $MMM. As the $MMM price increases, this quantity decreases, and vice versa. The values in this table represent reference values only when $MMM = 0.0037$.
{% endhint %}

<div align="left"><figure><img src="/files/pEc1he7fML3sb2FiZmfC" alt="" width="435"><figcaption></figcaption></figure></div>

### **📈 Breakthrough**

When the pet reached <mark style="color:purple;">**S-**</mark>⭐️⭐️⭐️⭐️, it needs breakthroughs to continue upgrades.

Breakthroughs need manas from <mark style="color:purple;">**S-tier**</mark> pets:

* User need to consume other S-tier pets to proceed with breakthroughs.&#x20;
* The higher the star-rating of the S-tier pets, the more manas is provided.
* The higher the breakthrough level, the more pets are needed.

**The level that triggers Breakthroughs:**

<table><thead><tr><th>Breakthrough Level</th><th data-hidden></th></tr></thead><tbody><tr><td>170</td><td></td></tr><tr><td>190</td><td></td></tr><tr><td>210</td><td></td></tr><tr><td>230</td><td></td></tr></tbody></table>

**The energy values to S-tier pets of different star levels:**

| Pet                                                 | Manas |
| --------------------------------------------------- | ----- |
| <mark style="color:purple;">**S-**</mark>⭐️         | 1     |
| <mark style="color:purple;">**S-**</mark>⭐️⭐️       | 2     |
| <mark style="color:purple;">**S-**</mark>⭐️⭐️⭐️     | 4     |
| <mark style="color:purple;">**S-**</mark>⭐️⭐️⭐️⭐️   | 8     |
| <mark style="color:purple;">**S-**</mark>⭐️⭐️⭐️⭐️⭐️ | 16    |

<div align="left"><figure><img src="/files/3TyWa5cWte5p50cEgDBN" alt="" width="434"><figcaption></figcaption></figure></div>