Nice prototype, the interpretation of the theme to “Into the depths of the mind” is a very good idea, and that makes for a good story, but I think it needs more polishing to be a great game.
The cards have no unique visuals, it could add much more immersion with some, and the thoughts selection do not seem to have too much impact as the enemies are easy to beat anyway.
I thought that the selection of thoughts would lead the story into different paths, with different endings, but right now it just improves the stat, that should be a good way of improvement.
The audio and palette do a good job to set the mood.