It's a free roulette lottery game.
You can play all the functions for free.

Play Mode:
"スタンダード(Standard)"
It is a roulette lottery that continues as long as you enter "Next".
Compete for the number of times you have continued.

"マルチプル(multiplication)"
The score doubles each time you enter the number hole.
Continue until you enter the "END" hole.
If you enter the hole of "SAFE", it will continue once even if you enter "END".

"スタンダードエディット(Standard Edit)","マルチプルエディット(Multiplication Edit)":
You can edit the number of holes, the number of roulettes, the arrangement of roulettes.

"世界ランキング (World Ranking)":
You can register your best score in the world ranking.