I'm missing some graphics for walls and bullets. I didn't have this problem when I played this game earlier. Also the final wall upgrade seems to be broken.
Wth ... my saved game is gone every time I come back to this page. I don't see other complain about this so I guess it's an edge case. I'm using Firefox on a mac. I've never had problems with my saved game in other games.
the interface is confusing. "Main mode" isn't a button while the other similar images are. Instead to play the game you have to click small squares that look like your current stats.
The flash object becomes unresponsive when you click world domination and when you finally get it it becomes unresponsive when you click upgrade. I don't have this with other flash games.
The waves are nicely tuned. I like a challenge, I'm at stage 23 right now.
Found a bug: if you pause just when you killed a swarmer the spawns will continue while the game is paused.
 "Tesla Death Ray"){kind=icon}
 "Great Dungeon in the Sky"){kind=icon}
 "Master of Fortresses"){kind=icon}
 "Battle for Alandria"){kind=icon}
 "Lightbot 2.0"){kind=icon}
 "Neon Rider"){kind=icon}
 "Battle Gear 2"){kind=icon}
 "Robot Dinosaurs That Shoot Beams When They Roar"){kind=icon}
 "William and Sly"){kind=icon}
 "Toss the Turtle"){kind=icon}
 "SnakeCharm"){kind=icon}
 "Eridani"){kind=icon}
 "Daytraders of the Dead"){kind=icon}
 "Silver Maze"){kind=icon}