As Saint said, it's promising. The core game is pretty decent, if a little unoriginal. The "Hero" is fairly boring, and could easily be toned up alittle in terms of originality and character by having cut scenes between bosses.
The game itself was fairly easy, and I managed to beat it in 15 rounds, total. The final boss, especially, was far easier than expected, once you get the pattern of spikes down. Suggest upgrading the beetle minions for that fight again, specifically granting them slight homing after they enter the screen.