February 7, 2009
Author's Response:
This is pretty weird...
I've played the game many, many times, both here on Newgrounds and offline, but I've never seen the missile freeze bug yourself and others reviewing the game have mentioned... I'll have to have another look...
We sped up the upgrades (their frequency) because we found it was too slow otherwise, with more than the present number of missiles to destroy.
Thanks for the review!