Congratchi has three forms spanning multiple age stages, much like Lovesoratchi.
In his first form, he has a small round yellow body with short legs and no arms. He has dark round eyes with no reflections, peach-colored lips, and light red cheeks. He has a red frills around his waist. He has a single round blue balloon coming from the top of his head, which makes him hover a short distance above the ground.
In his second form, he also has short arms and a red cap with two round balloons coming out, one blue and one pink. He no longer has frills around his waist.
In his final form, he has longer oval-shaped eyes with four-pointed star reflections. He also wears a red bowtie and wears a red tophat with three heart-shaped balloons coming out, one blue, one red, and one pink. He is also depicted carrying a wine glass and a white flower.
Congratchi's name comes from the English word "congratulations".