TimeCrisisLike

 Here's the translation of your instructions:  Game Instructions:  

Hide/Peek Switch: Space Bar  

Aim Movement: Mouse  

Fire: Left Click  

Retry After Game Over: F Key 

 Hit the enemy with bullets to switch positions. 

Clear the stage by hitting them a certain number of times. 

If the player is hit by a bullet even once, it's game over. 

Bullets won't hit the player if they are hiding.