This is version 1.0 of Scratch Shooter Series! Score and mobile system added. The multi-touch joystick is designed by Griffpatch. Tutorial: https://www.youtube.com/watch?v=cI1mdVVvCWY The multi-touch joystick still has some bugs, I will watch the tutorial again to fix it soon.
Thanks to @Griffpatch for the multi-touch joystick! (I changed the joystick a little bit) The other codes are by myself.