Zenkais

Zenkais (also known as "Zenkai Levels" or "Zenkai Boosts") are Dragon Ball Rage's prestige system. In essence, once all four of your stats surpass a certain threshhold, you will have the opportunity to Zenkai Boost. This will reset all your stats to 0, but in exchange, you will earn.... This can be done up to 35 times, with each Zenkai level's exp boost stacking, allowing you to rapidly build back up to where you left off.
 * +1 Zenkai Level on the leaderboard
 * A higher maximum stat cap.
 * Increased EXP gain from all sources (+50)
 * New forms & techniques.

Zenkai Requirements
Each time you Zenkai, the stat requirements you need to boost again are raised. Here is a list of all of the requirements for each Zenkai level and what they unlock: