Let's complete the alphabet with gacha!
The 26 alphabets from A to Z are used to play gacha!. Use "RND" to play.
Let's display the collection.
Until complete, automatic gacha!
How much will it cost?
Let's make "A" to be rare.
Make a probability of it becoming "B" be 9/10 even if "A" comes out.
Try it!
1. Let' try three times, and compare
2. Let's make it to be rare from "A" to "F"
3. Let's make sure that "Z" does not come out
4. Let's come out "Z" by a probability of 1/2
5. Let's make it to not go onto each other (not become same)