Overall great game...I know this nitpicking but...wouldn't the "fire" monsters be vulnerable to water or ice, while the water and ice monsters be vulnerable to fire? Just sayin', great job. :3
Laser Rockets are great and all...but when you can afford it: Buy 3-6 rail guns, upgrade 2 fully, upgrade 2 halfway, and leave 2 alone. Then double the speed of the game and mute the sound. Then pause the game, go to youtube and type in darude sandstorm.
LASER LIGHT SHOW!!!!!!d :DDD
:D