I was around 10 when we moved to Omaha, Nebraska in the early 90s and got to experience KB Toys for the first time at the Crossroads Mall. The Toys R US was a few blocks away in its own building. All 3 are gone, now, but they were still there in the early 2000s when I started collecting as a young adult. Many fond memories and a few regrets for toys not purchased there.
Oddly enough, there was a Woolworth's (Now there's a name, etc...) opposite the KB in the mall when we first moved there, and I distinctly remember them still having Action Masters and Micromasters on the shelf while KB had G2.