Simplify the following text for a Grade 12 native English-speaking person.
Original: Zelda II : The Adventure of Link , released as The Legend of Zelda 2 : Link no BÅ ken in Japan , is an action adventure game developed and published by Nintendo for the Nintendo Entertainment System , and it is the second installment in The Legend of Zelda video game series .
Simplified: Zelda II : The Adventure of Link is an adventure-role-playing video game made by Nintendo for the Nintendo Entertainment System game console .