Real fun take on the theme; fits it perfectly! I felt a little friction in the gameplay when trying to fling the aliens upwards in some levels; I wanted to just go crazy and fling aliens at the hero rather than be slow, methodical, and precise to make them climb up platforms. Still, it was pretty fun. The idea of making the hero stronger after each success is very creative.
I’d love to see this idea with even more variety in the future. Like maybe some aliens that can be launched from really far or maybe they are really bouncy, or explosive…? Really, the possibilities are endless. Great work!