The concept seems really cool, but I hate it when 2 aliens of different colors stacks and I can't quickly determine which bullet to use. Maybe disallow aliens stacking?

The border of the map was not very clear, and I died because I got stuck in the corner before I realize (there's still some space left before the camera clears so I thought it's not the end of the map yet).

There was a slight bug with the leaderboard: each time I click highscore a new score my last highscore is added to the chart again.

Overall the concept is fun and intuitive, it has potential but need more polish.

Concept is fun, execution lacks polish somewhat (and it's okay, because it's just 72 hours). There is one thing that particularly bothered me - that your speed was much less than the swarm's, which isn't particularly a great idea in games where you're fighting against swarms - unless you give the player that much more firepower (which we didn't have here). Good effort though!

Fun little arena shooter, I can't get very far, but I like the idea of shooting two different aliens with the different colored lasers. Nice entry.