I found popping corn on the stove to take just as little time as making it in the microwave. The best part is getting to control fat and flavorings. As it is, popcorn is a healthy food, rich in fiber. So scale back on the butter (or leave it out altogether) and amp up your seasonings and have fun with your spices. It really is better this way!
Stir the sugar, salt, wasabi powder and cayenne pepper in a small bowl. Set aside.
Coat a large pot with canola oil, place 2-3 popcorn kernels and cover. Place over medium-high heat. When you hear the kernels pop, add all the remaining kernels to the pot, replace the lid, and shake over the heat until all the corn is popped. When you no longer hear popping, remove from heat and transfer to a large bowl.
Toss in the sugar-salt-spice mixture and butter (optional) and mix well. If you find that it's not spicy enough for you, sprinkle in more wasabi powder and/or cayenne pepper. Enjoy while toasty!