Under the watchful eye of Mr. Towers, assemble buildings from color-coded construction blocks before the conveyor belt backs up in this unique combination of block dropping puzzle inlay action and city-building simulations. Revitalize 48 different cityscapes as you build homes, factories, shopping malls, schools, fire stations and more. Use power-ups to bulldoze unneeded buildings, freeze, reverse, break up or detonate construction pieces and spray paint new colors.