Complex sentence: Additionally, he proved to be an excellent bowler, as he joined Emmett Clark's bowling team and astonished everyone by bowling a perfect game, and he even parachuted from a plane to appease a thrill-seeking lady friend.
Split into simpler sentences: Additionally, he proved to be an excellent bowler, as he joined Emmett Clark's bowling team and astonished everyone by bowling a perfect game. Howard even parachuted from a plane to appease a thrill-seeking lady friend.