They use written form to show the rules of game, to describe the atmosphere, and to introduce performer's performance etc.

节目进行时以书面形式使用外来语的主要作用是：说明游戏规则，描述现场氛围，介绍表演者的表演等。

youdao

First, I'll explain the rules of the game.

首先我要说明一下游戏规则。

《牛津词典》

The rules of this game had changed.

这个游戏的规则已经改变了。

youdao

But he says the firm position of the regional alliance is to respect the democratic rules of the game and the constitution.

VOA: standard.2009.08.14

And the rules of justice are simply the laws set up by the winners of the game to protect and to promote their own interests.

而正义的规则,当然是由赢家所制定的法律,用以保护与促进其本身利益。

耶鲁公开课 - 政治哲学导论课程节选

And sovereign is appointed for Hobbes to be much like an umpire in a baseball or a football game, to set the rules of the game.

对霍布斯来说,君主就像是足球或棒球场上的裁判,只有严格执行规则才能使比赛公正地进行。

耶鲁公开课 - 政治哲学导论课程节选

Although there are likely several reasons for this, and the sampling size might not qualify this as a statistically significant result, I would offer that if you approach a game with the idea of how to work around the rules of the game in increase your odds of winning while your opponents are simply following the rules, your chances of winning will dramatically improve.

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The collision of WBC rules and the unwritten rules of the game led to the blowup, Renteria said.

NPR: Fierce Brawl Mars Canada's 10-3 Win Over Mexico

The game is always capable of changing and you want to be the one that changes the rules of the game.

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