I've translated the remaining ones, but it'd be good if someone who actually has a clue about Touhou checked them for traces of making sense. The ones I have done are:
Lower row:
Flower (?) Tank (the platform thing). "Flower" (furowa~) would be usually written in katakana, but here nothing else really fits (this is not to say that flower does :), so I guessed it's just written in hiragana for kicks.
Anonymous bookworm youkai (Tokiko) (slightly to the left of the platform's label) No amount of searching on Touhou-related sites gives anything about Tokiko, so I just went with the only reading for kanji in enamdict.
Hoshizako (the star-shaped thingy). "zako" is not a word, as far as I can tell, so I left it untranslated. Hoshi means star, though.
Zako means "trash" and is generally given to characters whom, as a whole, are nothing more than generic enemies or were never named in the first place.
