What type of control is Games ?
It's very helpful to rename controls with a prefix txtGames for instance would indicate a textbox control, you are doing it with your combo's, it might help going forwards as it can also distinguish between a control reference and referencing the underlying a field.
You can also simplify your code and make it more flexible if you set a tag value on any controls you wanted locked, say LockTag , then your code becomes
Code:
Dim ctrl As Control
'Lock all controls with a Tag value of LockTag
For Each ctrl In Me.Controls
If ctrl.Tag = "LockTag" Then
ctrl.Locked = True
End If
Next