On roulette, you can invest some credits. If you type all, you invest all your credits. On slotmachine, you can also use the all command. If you win slotmachine or 0 in roulette, you get X10.
I used the firework sprite from https://scratch.mit.edu/projects/115615434 Thanks to jellybean14_14 scratch.mit.edu/users/jellybean14_14
