this is a really great game. It needs quite a lot of work, however. I have a few suggestions/ complaints.
=You should allow WASD movement as well as the arrow keys
=You should allow the player to pause and view controls
=There was no visible point or currency system to explain the upgrades, and i wasn't sure that clicking the plus signs was even working.
=Consider listing the level of each upgrade next to the plus signs.
=I found that the only weapon which was effective was the stick, and although after beating the game i realized you could effectively shoot all of the weapons at the same time, it was still much more practical to focus on clicking faster.
=You may want to consider allowing the player to hold down buttons like 1, 2, 3, and 4 to use weapons. or the mouse to shoot, because i found that the only way to defeat the bugs, especially those large beetles, was to click ridiculously fast.
I probably sound overly critical, but i think this is an amazing game, and had a lot of fun playing it. Keep up the good work.
