Really a not bad first game! Nevertheless I confirm the "Last Bullet Never Kills" bug and add my voice to recomend a Reload Hotkey as a first improvement. Hope the game gets further development. Cheers!
Ok, so the name says it all... but if you're going to make a game like this don't make the player start all over every time it makes a bad decision! :P
Are you going to make the movement of the shipd more fluid? As it is now the steps they make with each cliçk just align them with the columns of incoming enemies...
Anyway, keep the work up!
OK, so it is a prank. Not a very good or elaborate one, but not offensive either. And as a bonus it doesn't take all that long to finish. Nice if it is a first/school project.