you can link multiple games together, lets say you want to play 5 games each 10 bit:
that means, you will pay 5x 10 (50) bits for 5 games to guess.
if you get one wrong, you loose, if you get all right you win your stake (50) + win (50) + bonus (in this case 125)
Take a look at my math with 50 bits bet:
1)50X2=100
2)100X2=200
3)200X2=400
4)500X2=800
5)800X2=1600
In normal dice site, if I hit 5 correct results I could win 32X or lose initial 50 bits. At your site if I hit 5 correct outcomes i can win 2.25X. You have to offer something better than 2.25X for 5 correct outcomes.
There is no sign up button, no security, no nothing, whoever deletes cookies could lose all funds.