Complex sentence: Max, going berserk, runs down the stairs and Rudy attempts to stop Max with his baseball bat, but before he can hit Max, he grabs the bat with his mouth and hurls Rudy through the air and into the corner of the stairs.
Split into simpler sentences: Max, going berserk, runs down the stairs and Rudy attempts to stop Max with his baseball bat. But before he can hit Max, he grabs the bat with his mouth and hurls Rudy through the air and into the corner of the stairs.