Yes, Manila Ninoy Aquino International Airport offers a shuttle service between Terminals 2 and 3. The shuttle is a practical way to go between terminals and runs on a regular basis. For the most up-to-date information, it's best to verify with airport authorities or shuttle service providers regarding precise specifics like fees, frequency, and duration, as they may differ. Taking the shuttle instead of a taxi might sometimes be more affordable, particularly if you're going alone or in a small group. But if you're going somewhere with lots of bags or a larger group, a taxi can be a more handy and pleasant choice.