never been there before just asking how much would it cost for 3 people

For the entrance you have to pay $2.00 to get in and you have to buy some nickels or bring your own to play some games

$6 , $2 each for entry. Then the game are nickel instead of quarter games. So if the would normally be 4 quarters it would be 4 nickels instead.

For 3 people, entrance fee is $6.00. then of you want to test out the place and not pay much, it'll be about $9.00.

Yes

Correct