Complex sentence: Its merchandising was commercially successful; being one of the most popular selling toy ranges in 2002, it included a mini arena, pullback toys and radio-controlled versions of Shunt, Matilda and Sir Killalot.
Split into simpler sentences: Its merchandising was commercially successful, being one of the most popular selling toy ranges in 2002. It included a mini arena, pullback toys and radio-controlled versions of Shunt, Matilda and Sir Killalot.