Roly-poly toy with adjustable center of gravity

A roly-poly toy with adjustable center of gravity, comprising:

• a first base part, a first winding mandrel rotatably mounted on the first base part, a second base part, a second winding mandrel rotatably mounted on the second base part, a reel belt, and a drive assembly;
• wherein the first base part and the second base part are arranged at an interval, the reel belt is annular and has a first end wound around the first winding mandrel and a second end wound around the second winding mandrel;
• wherein the drive assembly is configured to switch between a first driving state and a second driving state, when the drive assembly is in the first driving state, the first winding mandrel rotates to roll up the reel belt, and the second winding mandrel rotates to release the reel belt, and when the drive assembly is in the second driving state, the second winding mandrel rotates to roll up the reel belt, and the first winding mandrel rotates to release the reel belt.