To be a cold killer - assassination game recommendation

Jimmy has no interest in online games and doesn't play Galgame. The cutting-edge game machine configuration is not up to par, so I often play some Flash games during my time online to adjust myself. Today, I would like to introduce a sniper game to everyone. There are two versions of the game: the first generation and the second generation. The game is very simple, but first you need to have a certain ability to read English, otherwise you won't even know the conditions for success, and no matter how good your shooting skills are, it will be useless. Jimmy has already passed both games, and it's a very interesting game. The story plots of the first and second generations are also related.