2.21 is latest and added True ending.
Please check the "Kouryaku.txt".
I am not fluent in English, so you should feel my description of this game.
Go to the top of tower with cute NOKOGIRI Loli Girl!!
She is bridge between you and where you want!
Edit Girl!! Her name is HANOKO, Wing Saw Girl.
KEYS : use manipulation key is A B ok cancel, and arrow.
Controller is not efficient to play this game. Keyboard is ok.