So since you're including a download link, is this game freeware?
Ah, after I started playing it, it makes more sense. It's a standalone danmakufu game, and there's only one stage and Extra. (Albiet extra does have 14 spellcards to choose from!)
Also, yeah, it's fairly hard. Kinda awkward to start with a save file that's no-item-cleared everything though. I think I found where the save file is (script/amano/data) but I also don't know if I'm going to bother to clear enough myself to actually bother resetting it :V I'll mess around with it for a bit though.