I'm embarrassed to admit that I spent a lot of time trying to beat this game without knowing that you could reflect bullets, even though I should know better than to ignore the itch.io page.
The visuals are great and the boss was fun. The normal enemies are way too tanky, but so is Meiling, so you can just tank everything while rushing through the stage. The game has some of the usual problems associated with melee attacks in shmups, but the boss fight worked very well and Seija's gimmicks were interesting.
The bomb did not seem to do anything against Seija, but that might have been a visual glitch. Since you can't store more than one bomb (and you start with a full meter), the combo system becomes kind of pointless, but the game is fun even without this and it feels satisfying to just kick away clouds of bullets.