「MAX · BIRTHDAY BOY · LEVEL UP」は FontVibe AI で作成したキッズバースデーの文字エフェクトです。子ども向けにデザインした、鮮やかなレインボーのカートゥーン風バースデー文字エフェクトです。1文字ごとに異なる明るく彩度の高い色を使い、ぷっくりとしたバブル型の文字、カラフルな風船や紙吹雪の弾ける演出で仕上げています。子どものバースデーカードやパーティーバナー、1歳の誕生日祝いにぴったりです。

rendered in kids birthday cartoon style with vibrant rainbow colors. Each letter in a different bright saturated color (red, orange, yellow, green, blue, purple cycling). Letters in rounded bubble/inflated 3D cartoon style — thick chunky forms, smooth shiny surfaces with highlight reflections. White or light background. Large colorful cartoon balloons in multiple colors. Colorful star bursts, hearts, and confetti explosion. Thick black outline on all letters. Maximum saturation, maximum fun energy. Children party illustration aesthetic. Bright white background with soft blue gradient glow at center. Perfectly centered three-tier layout: Top: tiny bold caps "LEVEL UP" about 8% frame width in electric blue. Center: massive rainbow cartoon "MAX" filling 72% of frame width — M red, A yellow, X blue — extra chunky bubble letters with thick black outlines and circular white highlight spots. Bottom: small colorful caps "BIRTHDAY BOY" about 28% frame width. Large cartoon balloons — red, blue, yellow — clustered above. Confetti and lightning bolt shapes exploding outward. Bold primary color energy. Ratio approx 1:5:1.5.