3D dungeon game to practice Kanji (compound words)

Hi everyone,

I recently made a game (playable in-browser) as a practicing aid for Kanji, and am curious to see how other people like it. Personally, I feel as though the game has already improved my reading ability, and it might help others. I'm mostly hoping to get feedback on what fellow Japanese learners like/dislike about the game, and how I might improve it further. E.g. do I need to track other stats, is the learning curve too steep, etc. I personally use it to improve my reading skills to be able to read novels more smoothly.

In the game, when encountering monsters you get a randomly chose Kanji (compound) word from a vocab list of ±200k words. Each wrong answer costs HP, while correct answers kill monsters and garner XP. Every time you level up you unlock a higher difficulty tier, which is based on frequency of usage across Twitter / books on Aozora / newspaper articles. Hence, you start off with relatively common words and encounter more esoteric kanji as you progress through the game.

I would be grateful for any feedback, and hope you will find the game useful on some level.

by cokehigh