Besides enjoying excellent food, walking tours and sightseeing the beautiful old city, George Town itself does not offer that much to the adventurous tourist.
If you, tired of walking, want to kill a couple of hours there is the possibility of catching a movie at Cathay Cineplex on the 5th floor of the Komtar shopping-complex. Other opportunities are Golden Screen Cinemas in Gurney plaza.
On 4th floor of Komtar you also have the opportunity to shoot a game of snooker. RM9 for 1 hr.
Red Inn on Love Ln offers bike rentals for Rm10/day. Although bike paths exist around the city center, walking or renting a motorcycle may be an easier/safer decision.
If you're looking for something to do at night, there's always Upper Penang Road, where clubs, pubs and bars are always flooded with young people. UPR is located just opposite the famed Eastern And Oriental Hotel and beside the City Bayview Hotel.
