Is the game violent or not?

This is a shooting game, saving the world. The game content is humane and educational. The game is not picky for children, but in terms of the difficulty of the game, the game will be suitable for children from teenagers and above.

Is it mandatory to recharge this game?

This is a game in the Mod genre. This genre allows players to have more money when completing missions, and can use that money to buy more items, upgrade the character. Recharging in the game is completely unnecessary.