Turns out I had all 4 Superior items. You MUST use all four of these items in a single den, or I'll be upset! :) I gave you the only Kugree statue I had. This will give you a 20-smiley den for your scooters. If you get a hoofer, it will also be a 20 smiley den for them too. This will give you 45 minutes of maximum energy each time you sleep in the den.
Hey, great! Next get the Den idea so you can do a den. I'll give you some good happiness items for scooters for the den. If it was anything but a scooter or hoofer, I could give you stuff for a 20smile den, but the Kugree Statue and Bloomsponge (superior Beauty and Comfort items) are hard to come by. I can give you Excellent ones of those...should be enough to give you an 18-smile den, which should work for now.
Having a den means that if you sleep in the den before going out, you have 30-45 minutes of the highest energy, and you won't have to feed your critter during that time.
More time to zap stuff. By the way, don't eat the Duskroot. You'll need those for a goal later.