BubbleQuod 2 is the best free online casual game that will challenge your physics skills. Join the two brothers in their adventure at the duck plant, where an accident has separated them. Help Sam descend to the deepest levels and solve 27 physics-based puzzles to safely reunite the brothers and bring them back to the surface. Navigate through the factory filled with cogs, wheels, and moving platforms using the arrow keys. Switch between the characters by pressing SPACE and work together to push counterweights and fill the gaps. The bubble costumes will protect them from acid, but be cautious of the Warning signs. Teamwork is key to survival in this exciting puzzle game.