Mega Millions System, 16 numbers, 24 bets 

We select 16 numbers from 70 and 4 numbers from 25 additional numbers. The selected 16 numbers from 1 to 70 are substituted in place of the numbers in the system from 1 to 16, while the selected 4 numbers from 1 to 25 are substituted in place of the numbers in the system from 1 to 4 
Guarantee of 2 when hitting 2 numbers in selected 16 (guarantee applies to selected numbers from 1 to 70 and substituted in place of numbers in the system from 1 to 16)

5 z 16 1 z 4
1 2 5 13 14 3
1 5 7 8 12 4
1 5 6 8 9 1
1 5 8 10 11 2
1 3 5 14 15 4
1 4 5 14 16 1
2 3 6 13 15 4
2 6 7 9 12 1
2 4 7 13 16 1
2 7 10 11 12 2
2 7 8 12 14 1
3 4 6 15 16 2
3 6 9 10 11 3
3 6 8 9 15 2
3 7 9 12 15 3
4 8 10 11 16 3
4 9 10 11 16 4
4 10 11 12 16 3
6 8 9 14 15 3
7 8 12 13 14 2
7 9 12 13 15 2
8 10 11 14 16 4
9 10 11 15 16 1
10 11 12 13 16 4

Numbers from 1 to 16 should be substituted for selected own 16 numbers from the range 1 to 70 and numbers from 1 to 4 should be substituted for selected own 4 numbers from the range 1 to 25