The responsiveness and variety in the waves was good and I enjoyed the game as a pure bullet hell. I do think the biggest turn off people will have is the difficulty curve within waves. Each pattern is just as hard as when it begins as it is when ends. An easier beginning helps players understand what they are supposed to do earlier, and lets you make for more exciting ends if the pattern gets more difficulty later on, which makes it more satisfying to beat.
One thing I noticed is if you research elements, that color starts appearing, the problem is then it can be better not to reasearch any elements then so that only white blocks appear.
You have knack for level design, making use of your limitations, but the controls are unintuitive (not being able to jump other than straight up), and unfortunately I don't think too many people will be willing to work past that
 "The Man Who Can't Jump"){kind=icon}
 "Luminous Ruin"){kind=icon}
 "War of Omens"){kind=icon}
 "The Perfect Tower"){kind=icon}
 "The Unfair Platformer"){kind=icon}
 "Monster and Doors"){kind=icon}
 "Vertigo: Gravity Llama"){kind=icon}
 "Bullet Audyssey"){kind=icon}
 "Amorphous+"){kind=icon}
 "Mushroom Madness 2"){kind=icon}
 "REPLAYING :the game:"){kind=icon}
 "Gravit-Eye"){kind=icon}
 "GeoSketch"){kind=icon}
 "Take Something Literally"){kind=icon}
 "Idlekips"){kind=icon}
 "Zombie Survival"){kind=icon}
 "Frantic 2"){kind=icon}
 "This is the Only Level"){kind=icon}
its just another way of playing!!