New System and Gameplay Edit
While the gameplay remains unchanged from the original, 3way -Alley-features a "What If" scenario as well as a DLC scenario.
The story line is based on the original version, but with some new additions.
Izaya is hatching up a plan that involves the three rival gangs and a politician. Under Izaya's orders, Yoshimune Miyoshi has to help out with the politician's campaign.
Shizuo, who seems to have fallen victim to his own actions. Yoshi has to drag the wounded Shizuo away to flee from a group of mysterious men in suits.