By adjusting the amount of money you put in to each pull of the lever. Tombstone Trail Casino is opened on the Tombstone Trail after learning the Travel spell. There are four games of chance. ni no kuni casino prizes. Slot Machine is a game of chance in the Tombstone Trail Casino. Lastly its the Platoon game, this is like 30% luck and 70% skill, you need to come up with a strategy to win. so far i have found a few tips. . Platoon is more like 70% luck 30% skill. . Try. I guess, it's also far and awa the easiest casino game and can win you the most money PERIOD.