A rank unlocks later in the story, they are jumbo stardrops, moondrops, etc. This gains you access to the RIP theater room and unlocks. . I have lots of chips and was wondering if it would unlock before i beat the game. ni no kuni casino prizes. During the post-game, when you go to the casino in Tombstone Trail you're awarded with a RIP pass. S rank unlocks after you beat the game, they are tickets to. advertisement. The casino is located at the beginning of the Tombstone Trail. If the player goes right at the very first fork in the trail, it is in the immediate viewpoint. I don't know if i'm near the end but i'm at nevermore now. Every prize is seperated into ranks that show how valuable each one is with C being the lowest and S being the highest.