Complex sentence: Mammy runs away from the assault as Mechano tries to break through the wardrobes and doors to chase the mouse but ends up crashing and breaking himself into pieces, with its computer hub flying out and accidentally swallowed by Tom just before the maid reaches him.
Split into simpler sentences: Mammy runs away from the assault as Mechano tries to break through wardrobes and doors to chase the "mice" and ends up crashing and breaking himself to pieces. Mechano's computer hub, unfortunately, gets accidentally swallowed by Tom just before the maid reaches him.