The idea of using sunlight and magnifing glass as a weapon is nice. That's a pitty that it doesn't really behave like sunlight. I hope you will continue the concept, as it might turn to a nice game in the end.
This game was definitely a bit hard right out of the gate I hadn't looked at the instructions and died in about 2 seconds. Restarting required re running the game. I think if the ants spawned in waves to ramp up the difficulty this would be a lot of fun. I like the graphics and I had fun killing lots of ants!
It's a very neat idea and there is some potential to make this a really cool game. There were some things that could be improved: 1) It was very easy to die right away before getting a hang of the controls. Perhaps give the player a little time to adjust to the game. 2) Give the player a button to restart the game instead of having to quit out and reopen the game. 3) There could be other things in the game to vary the gameplay a bit. Still, like I said, this is a cool idea with some potential! I also enjoyed the artwork quite a bit!
BTW nice graphic, well done!