Had a lot of fun playing this one, great entry! Gameplay is simple yet engaging, very easy to pick up and get hooked. At some points it felt a little chaotic and random but I think that's alright since it wasn't the majority of the gameplay. Definitely left me wanting more levels to play, I think you could do a lot more with this and have a pretty great game for mobile devices. My only critiques are very minor in that occasionally the text can be a little hard to read and could use an outline or background panel, and that the monochromatic green does get a little old after about the first 5 levels - some variation would be nice. Anyway, awesome entry, really fun!
You can check out my gameplay video playthrough below for some more detailed feedback and initial impression.