Got a couple new additions to this list from the last week or so...
I Wanna Climb the Shadow Tower
I Wanna Enjoy the Blow Festival
Both of these are on the easy side, shadow tower has a really silly quiz section and a boss at the end that could be hard without being able to understand the native language of the game maker.
Also I played the DEMO of "I wanna conquer the 100 Trials" that came out yesterday and while it only has 25 floors at the moment, they are a really good 25 floors. Unlike a lot of the other 100 floor games, this one does not start out with 20 floors of cakewalk, it throws you right into the shit quickly. Definitely one to watch.