The D will keep its two-story gaming floor, a rarity in the industry, but give the second story a twist. Video screens will be installed along the casino's interior escalator, which will take customers back in time to a vintage Vegas-themed second floor, complete with retro games such as the 10-seat, mechanical horse-racing game Sigma Derby.

The second floor will be remodeled over the next six weeks. Sigma Derby will be installed in April.