Glad you enjoyed it and thanks for the review! :) I definitely agree that currently the shuriken needs the most polish, our most consistent feedback is that the shuriken is difficult to use.
Is there anything you had in mind for some things requiring less precision? (the shuriken shooting at enemies, hitting the shuriken, etc). Right now we have aim assist on the shuriken but it may need to be increased, or have an option to toggle it.