It's SUPER short but really fun with a bit of challenge there too. The dungeon layouts and the bosses are well thought out, I just tricked myself into believing it was the same boss you were fighting so it didn't bother me that they look the same.

The main game doesn't take long to finish and there is a bunch of difficulty choices with a Speedrun Mode too.

There is a 51 floor Tower you can challenge too which has some random elements to it.

All in all, I'd say it is extremely fun but a bit short... Chapter 2 in the future?

Mt only gripes are the length, and the sword animation, but they are pretty minor.