nice!
Pros:
Great background music and sound effects!
Cute robots!
Simple scoring system
Cons:
Very fast game, so fast it takes at least 2 rounds to get to know how each robot explodes. Maybe make this into a "story mode" and make a little introductory movie of each new robot for that round?
Very difficult to time it so that every robot explodes, maybe consider coming up with a version that you can upgrade to a bigger explosion or you must explode so many robots to continue?
Overall enjoyable, fun, and addicting! Congrats in making a GREAT game in only 3 days...how many hours did you put into this?