갤럭시 레일 아케이드 타이틀 화면

A retro 2D vertical arcade rail-shooter title screen in a 9:16 portrait mobile game splash screen layout. The background is dark navy outer space populated with tiny white and pale yellow stars, featuring a large partially cropped Earth-like blue planet on the left side with simple green continents and translucent cloud streaks. Exactly three vertical railroad tracks run straight from top to bottom across the canvas (left, center, right), designed with gray steel rails and brown sleepers. On the lower center track, exactly two small train player cars are stacked vertically, featuring rounded white bodies, blue windows, yellow borders, and a bright yellow headlight on the front car. In the upper-center, the game title is displayed in two lines: “[GALAXY]” in large white slab-serif text with a dark navy outline, and “[RAIL]” below in large golden-yellow slab-serif text. Directly underneath is the bright cyan Japanese tagline “[銀河を、レールで切り拓く]”, followed by small gray text “RAIL SHOOTER / 2D VERTICAL / 3 STAGES”. In the lower third, a translucent dark blue instruction box with a thin blue outline displays three Japanese lines: “←→↑↓ / WASD：移動（レールから自動ジャンプ）”, “Z / SPACE：短押し＝単発 / 長押し＝2連射”, and “時間経過で最寄りのレールへ強制着地”. Below the panel, a small red warning line reads “赤いサークル＝瞬着攻撃の予兆。収束前に発生源を倒せ！”. At the bottom edge, centered pale gray text reads “[PRESS Z SPACE OR CLICK TO START]”. Style is crisp 2D vector arcade game mockup with retro pixel typography and clean high-contrast colors.