Can Genos do something to increase his power other than changing his parts?


So Genos follows Saitama as master and Saitama the only thing that knows for
increasing a hero power is training. Can Genos do any kind of training to
increase his power? Or he just can increase his power when he changes his
parts?




That would depend on how much modification is done on his body. From
[here](https://onepunchman.fandom.com/wiki/Genos), it says that

> Genos has an entirely mechanical body in the model of a handsome young man.
> His face and ears look like that of a normal human, made of an artificial
> skin material...

If this is true, then yes, **one of his only possible options is to upgrade
parts only since his body is already purely mechanical**. Doing Saitama's
routine would not improve his already-mechanical body.

However, _he has a capacity to learn and acquire knowledge_. Whatever limits
him due to his mechanical body can be supplemented by a constant experience
and knowledge. As they say, knowledge itself is power. Power alone is useless
if used without knowledge and most of the time, enemies cannot be defeated
without thinking and analyzing the situation first.

