Roblox Block Tower Game Thumbnail

Bright, colorful square promotional game thumbnail for a Roblox-style obstacle course titled [巨大アスレチック ブロックタワーを駆け上がれ！]. Setting & Background: A massive vertical tower made of glossy, colorful toy-brick platforms and plastic studs rising into a vibrant blue sky dotted with soft white clouds. Composition & Layout: Square 1:1 framing with high-contrast mobile game banner composition. The red-and-white ROBLOX logo sits in the top-left corner. At top-right, two rounded black HUD counters display: one with a gold coin icon reading "1,234", and another with a treasure chest icon reading "宝箱 7/10". The center features giant layered Japanese headline typography: a small black badge reading "巨大アスレチック" above massive rainbow-colored 3D block letters "ブロックタワー", followed by bold white text with black outline "を駆け上がれ！" flanked by sparkling yellow stars. Below the headline, a blue ribbon banner reads "宝箱を集めてガチャを回そう！". Characters & Props: Exactly 8 chibi anime-style characters with large expressive heads and joyful expressions: an orange-haired girl in a yellow martial-arts outfit running forward, a smiling panda buddy on the bottom-left, a green-haired crowned chibi girl, a red-kimono chibi girl, a black-haired ponytail adventurer, a gray-helmet chibi girl, a purple wolf-eared boy, and a flying dark ninja boy carrying a small black cat. Exactly 3 small mascots: the tiny black cat, a yellow chick, and a pink bunny. In the foreground, an open golden treasure chest and a bright red-and-gold capsule gacha machine filled with colorful balls, accented by an explosion callout burst reading "宝箱の数だけ ガチャが回せる！". Scattered sparkling gold coins and star particles throughout. Bottom UI: Four rounded black cards with orange borders across the bottom edge: 1. Chest icon: "宝箱を集めて ガチャを回そう！" 2. Stopwatch icon: "タイムアタックで ランキング上位を目指そう！" 3. Badge icon: "バッジを集めて 図鑑をコンプリート！" 4. Checkpoint flag icon: "セーブポイントで どこでも復帰！" Style: Glossy 3D plastic toy-block aesthetic, bold sticker outlines in black and white, vibrant saturated primary colors, crisp vector-like cel shading, dynamic anime promotional art.