random to arc4random
Merge pull request #5 from yuta-amano/fix/random

randomじゃない
show a text after pressed the start button
Merge pull request #7 from yuta-amano/feature/after_start

スタートボタン直後の白紙表示がびっくりする
fix settings for git
change "score" to "stage"
Merge pull request #11 from yuta-amano/fix/score_stage

表示上scoreではなく「ステージ」にする
add ad
adjust a course of a answer face
fix layout
Merge pull request #9 from yuta-amano/feature/ad

こうこく！