I like the idea of making it difficult because that's what you want to do, heh, and I hope you're able to make that work out. Conversely, it could also give you the option to add two or more difficulty levels, perhaps one at the level you want it to be, and a difficulty for those who want to spend more time appreciating the stunning art you've made for it? Honestly, not sure if that's even a viable way to do things, I'm not a game developer.
Wishing you the best of luck with continuing to make things!