User summary (some details from Wikipedia):
Crazy Taxi 2 is a sequel to the arcade game Crazy Taxi, but was never in the arcades. Instead it's a Dreamcast original. In Crazy Taxi w, the developpers added the stunt Crazy Hop, and you can also take several customers in the taxi at once, driving them one after the other to their destinations."
Source: Wikipedia, "クレイジータクシー," available under the CC-BY-SA License.