All things in moderation, especially video games which do present an element of risk to sin. People get addicted to the constant action, the NEED to win at all times, etc. I agree that martial arts or firearms is a more wholesome hobby. It's better for your health to be physically active. Angry outbursts, if you still have them, are a sign you need to get them out of your life. I see nothing wrong with an occasional game, so long as the game itself doesn't contain impure or evil imagery or give rise to anger. I cannot speak from personal experience as the only sorts of games I play on line are chess, mahjong, and spider solitaire!