Sounds like you are asking "What if my co-founder doesn't do everything exactly the way I want and I would do". If you had asked, what if my co-founder is not

Sounds like you are asking "What if my co-founder doesn't do everything exactly the way I want and I would do". If you had asked, what if my co-founder is not meeting his/her obligations, then that is a different story regardless of whether they are playing video games or not.