I liked how the ghost companion tried to be serious but the main character just didn't have much to say in return at all. The ghost was pretty cute too! Reminds me a bit of that new NieR game coming out on mobile.
As for gameplay, I feel like either the dark wall moves too fast or the obelisks/wall thingies take too long to clear. The balance there might be a bit off for someone who hasn't really played the game yet. The enemies were satisfying to hit when you aim at them correctly, but they're so small that it's a little annoying. I feel like you could introduce bigger enemies in the beginning, and then slowly roll out the little guys later on, just to ease players into the mechanics better.
Balancing issues aside, the game was pretty fun! The dialogue was fun and I really dig the visuals! Good job!