No there are not any Parental Controls on Halo reach.
But there are Parental controls for your xbox which would effect Halo reach making it safe ( sort of ) for you're children to play if you are regarding online play.
1) Go to your Xbox 360 Dashboard
2) My Xbox, second window which should display your ' gamertag ' and Avatar.
3) Press A and scroll to the right taking you to ' Online Safety '
4) Press A and it shall take you to another menu which in turn gives you the ability to customise Who may talk to you, who may add you and whom may see your online status.
You can also change family setting's on the second before last window of the ' My Xbox ' Plate previously shown to you.
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It depends on what controls you have on, but if its default press and hold X.
after Halo reach,there is no more In total, there is :Halo 1,Halo 2, Halo 3, Halo ODST, Halo wars and Halo reach
No, Halo Reach shows what happened before Halo 1. In fact, in one of the missions in halo reach, you can see Master chief
halo,halo 2,halo 3,halo3 ODST,halo wars,halo reach
there are no terminals in halo reach did you mean halo 3 or anniversary