Capture the flag, by 
I’m always wary of WBRG levels because they run the risk of being brightly colored monstrosities where I can’t tell my rabbit from the sky, but the simple measures of diminished lighting and a translucent black background layer work wonders here. This does, though, reduce the number of available layers to the point that all the chains move at 1/1 speed, and frequently confuse me into thinking they’re vines. Oh well.
CTF levels tend to be pretty horizontal, what with there being one base on the left and one on the right and all that, so it’s neat to see such a vertical focus here. Lots of chimneys break up the larger platforms, mostly with blue or green springs at the bottoms, so you spend a lot of time bouncing or falling around. That provides a lot of opportunities for taking opponents by surprise as you suddenly enter their field of vision from above or below. It might be nice if there were a toaster powerup for spraying wildly around you as you bounce. The very-hard-to-reach seeker powerup in the middle is seemingly the only use for the electroblaster ammo—nothing else in the layout obviously invites its use—but this doesn’t actually strike me as the most seeker-encouraging level.
Sadly, a lot of little bits do kind of bother me. There’s an unfortunate masking issue at 106,42 that messes with the usefulness of the nearby spring. Some sucker tubes and alcoves don’t make obvious layout sense to me. There’s some weird layer 3 usage near the right base. But there’s a fair bit to like here as a CTF level that doesn’t just paint by numbers.