reformulate the following text, make it clearer, more understandable and synthetic : 
This kind of bots have multiple applications in video games:  

In multiplayer games: as teammates or adversaries to balance the teams when human players are missing. 

For new players: as an onboarding tool to learn the game mechanics without playing against real humans. 

For production teams to automatically test various aspect of the game to increase quality and stability.  The letter j should appear at least 35 times.
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