Nice! It's been years since I played the original Rogue, but this brought me right back to that nostalgic feeling. There's something about these type of games that I find really enjoyable.
Finding the different items and experimenting with them was pretty fun. I made it to B6 before groups of drillers finished me off.
It's a very good roguelike! If I had one critique, it would be that I'm not getting tons of "Magical Girl" vibes from it. Obviously, by using the DOS-style character set for graphics, there's a challenge in visually displaying that theme. I think maybe if the items and monsters were a little more themed in the magical girl genre it would help with that.
Also, one issue I ran into (playing on firefox) is that when I tried ctrl+t to transform... it instead just opened a new browser tab.