All this used to be waist-high

I was, entirely by accident, one of the people hit by the very first wave of low, rectangular walls that resembled toppled refrigerators and swept through videogames in the late 2000s. Most people encountered them along with the cast of Gears of War, who also resembled refrigerators, lumbering towards equally cumbersome enemies with a view to chainsawing their chest cavity open. But the walls originated in a lower-profile PS2 game called Kill Switch, which Namco published in 2003 and I was given to review on PC in 2004. 

This was back in the era when Playstation was the mass-market platform and PC would get indifferently produced non-upscaled ports up to a year after initial release, arriving with dismal graphics and peculiar keyboard mapping well after any wider excitement had peaked. Kill Switch looked just as rough as all the other VGA transplants and I'd never heard of it, but I was very taken with the cover system, in which your third-person army man could be stuck to walls and fire round or over cover to take down the swarms of other army men. You could even blindfire, which was cool and exciting.