If you fail to list all of your eligible children and/or your spouse, it will result in the disqualification of the entire case and the immigration visa will be rejected at the time of visa interview. Of course, if you had any children born after you made the application and before the visa was issued, you could obviously not include those children in the original application and they would still get the immigrant visa. 

Under the current version's regulations (which began October 28, 2017 with the first drawing October 31) for Mega Millions, the minimum Mega Millions advertised jackpot is $40 million, paid in 30 graduated yearly installments, increasing 5 percent each year (unless the cash option is chosen; see below for differences by lotteries on cash/annuity choice regulations.) The jackpot increases when there is no top-prize winner[1] (see below for information on how the Mega Millions jackpot is funded.) As of December 13, 2017, there has yet to be a jackpot winner under the current Mega Millions format, including wagers for the newly created Just the Jackpot option.
Since the secondary prizes are defined in fixed amounts (except in California), if the liability for a given prize level exceed the funds in the prize pool for that level the amount of the prize may be reduced and the prize pool be distributed on a parimutuel basis and result in a prize lower than the fixed amounts given in the prize tables.[29] Because the secondary prize pools are calculated independently, it is possible lower-tier prizes will differ among the game members.

The structure of the draw is one which regular lottery players will be very familiar with; players must pick 5 regular numbers from a pool with a total of 69 numbers and in addition to these regular number picks, you also choose one bonus ball (known as the Powerball) from a pool of 26. These two pools of numbers are mutually exclusive and remain completely separate throughout the drawing procedure. In order to jackpot the US Powerball, you need to match all 5 regular numbers and the Powerball. Do this and you are instant Powerball millionaire – it’s as simple as that!