When I discovered this was on Newgrounds, you bet your blue enzyme mech suit that I played it. And boy, was it as fun as always. I love this game and its sequel, as well as the last game in the trilogy. And I did the same challenge that koopatriored did, except I counted my total bullets used. My best score is 54, feel free to do this challenge yourself and try to beat my score! please note that I only counted necessary shots, not ones used only for the purpose of making it easier. Anyways, can't wait to play the sequel! And good luck with the new website, Nitrome!