At the top of the Cartoon Style image, “Happy 13th Birthday Ethan” in giant, bubbly balloon letters with thick black outlines and an electric-blue glow.

Playful, high-energy cartoon scene: Satoru Gojo in chibi proportions (spiky white hair, signature black blindfold, sleek dark outfit) grinning as he casually holds up a hand, forming a shimmering blue “Infinity” bubble around a towering birthday cake covered in rainbow sprinkles and flaming 1 and 3 candles. Charging in from the side, a huge cartoon T-Rex (Rexy) in a striped party hat lunges for the cake—his snout squishes against the invisible barrier with a comedic boing ripple; tiny arms outstretched, eyes wide, and a goofy grin. Confetti bursts, streamers, and number-shaped balloons (1 and 3) float around them. Exaggerated proportions, thick black outlines, bold cel-shading, and bright saturated colors. Whimsical, dynamic poses, motion lines around Rexy, sparkly energy swirls around Gojo. Background: a vibrant radial burst of turquoise-to-pink with star doodles and floating confetti, full-bleed vertical composition.

At the bottom as a small, cheeky caption in a chunky comic bubble: “Infinity vs. Tiny Arms: who gets the cake?”

Generated with these themes: Satoru Gojo, Rexy, and .

Made with ❤️ by AI.