Not the best or most original.
This is just another edition in a long line of sperm games that came before it. Personally, I didn't like it too much at all. The first level (if you can really call it that) was terrible. Just hold space and rush in; minimal losses. The boss battle on the other hand provided a nice challenge. The rest of the game was sub par. The graphics were ok, but there wasn't really anything (besides the boss) that would've made a difference with good or bad.
All in all the only reason I really played this was for the medals, other people may like it (and that's fine) but I do not.