Thanks for giving it a shot!
I wasn't sure if a separate tutorial was needed but i think i will probably add one.
Regarding the aiming maybe it was the spread of projectiles that made it hard to judge? (there is more spread when you shoot with less power). Also, did you click on the question mark on the new run screen (was it visible/important looking enough to click on it and if yes did you find it useful or overwhelming with text info)?
There is already a power up that shows the projectile's path and i am going to add another one that reduces the spread :)
I appreciate your suggestions!