Dear god this is not stage 1. There is no fucking way this is stage 1.
I always figured that the stage you had in the demos wasn't characteristic of stage 1 difficulty... stage 1 lunatic of UFO difficulty maybe, but not stage 1. Bear in mind, this is on normal mode...and I've 1cc'd most of Touhou games on hard.
Also, you made master spark harder, you twisted little freak! XD
Anyways, I took a stroll through fuckingwhat mode, just to see what it was like. I've never played the original version of flanchan, but somehow I think this is harder. I can't last two seconds without getting hit during the boss... and I mean this in the absolute literal sense. I can't wait to see Naut's reaction.
Anyways, the stage background was good, the addition of sound effects(finally!) was very welcome, Cirno was amusing, and Marisa's new introduction was freaking sweet. For some odd reason, Marisa has a longer delay between having her HP bar depleted and declaring her spell now... hm.
The menu sound is loud. Really, really loud. Make it less loud. :V
Addressing the alternate control schemes, I think it is absolutely awesome that you can here... but I'd like to mention something: Given that we are using Ikaruga gameplay here, it's reasonable to assume that the player is going to be using the switch colors key almost constantly... this was mentioned by someone else I talk to who has played Ikaruga, and I have to agree, you should be able to assign the switch colors key to the bomb/aimed laser thingies key, and have the bomb key go somewhere else. For instance, X is switch, and Ctrl is laser thingy. Especially this time around I have been fumbling with the switch colors key an awful lot, and this would help massively.
I'm going to be playing this some more, though. It's totally awesome.