Are leopards the most powerful big cat at night?
The cheetah and the cougar are not considered big cats as they do not belong to the Panthera genus. Also, unlike the panthers, cheetahs and pumas cannot roar. Panther is a generic term and does not apply to a single species. It may refer to a lion - panthera leo a tiger - panthera tigris a leopard - panthera pardus a jaguar - panthera onca a snow leopard - panthera uncia
Well the most powerful item is probably a big mushroom and it is especially helpful at the end of a world in the castle when you have to fight against a boss . But during a level there are some spots that a big mushroom can't reach in that case the most powerful/helpful weapon is a flowers ( has shooting powers).