Playing the Touhou games

I'm confined and bored. I want to discover those games to not die ignorant. I watched some videos on Youtube. It looks hard as fuck even the first levels. How do you manage to make it alive through all the bullets and lasers? Seems impossible.

Installing an emulator is already a pain in the ass. I can't imagine what playing will be like.

What PC-98 emulutaor for Linux should I use?