Felt an urge to hunt for the Jackpot all of a sudden, and hit this from the third try:

Not exactly Jackpot, but pretty close, huh?

Do you hunt for the Jackpot on Multiply BTC, guys, and what's your strategy, if you do?
I set the win chance to 0.97%

and make a hundred rolls or so. Then if I hit over 9903 I get my money back.

This time I hit it two times, but maybe I made a bit more than a hundred rolls.

Using costs around 2 satoshi for 10k satoshi as jackpot plus 1 satoshi each bet. If in total it will spend around 3 satoshi and to do 100 rounds means spending 300 satoshi.
I've never tried it but it's hard to get the jackpot in 100 spins, especially since this game is quite based on luck, but maybe later I'll try it if I have BTC left from the results of WOF earnings and hourly spins. BTW good luck and find the jackpot