[Rogozhin]

The first DMC was way too easy and near impossible to lose to any boss when you have your devil trigger activated.

The third installment, however, GREATLY downgraded the devil trigger to the point where it was useless. Your weapons are less efficient (especially your firearms) and the bosses will blitz you many times before you figure out a good strategy to beat them (anyone who didn't lose once to Vergil in the last fight must've cheated)