Sky of Fun 1
Justin has made a very nice retexturing of SLAM's original map, Rocket Run 1, here. The original map is dominated by triple strikes; here, Justin has brought in the scattershot in massive quantities! The whomper in the side-chamber remains, with plenty of ammo, and there is still a hypershot, as you can tell from the screenshot, and a ballzooka too!
Justin uses the "sky" texture a bit, including the floor, but has resisted the temptation to make everything pulse and glow, which is good; this is an arena that ought to be a lot of fun to play, and is certainly far and away the star of Justin's "Twisted Nature" map pack.