Horde level 8 defeated me. I don't know what the correct combination is, but I can't figure it out. Constant spells that instantly half my health, followed by an almost endless supply guys.
A few recommended upgrades:
1) Increase your rate of fire
2) Increase your firepower (damage)
3) Increase number of bullets per shot
4) Increase combo timer
5) Increase health of soldiers
6) Decrease time between soldiers spawn
7) Ability to buy air strikes
8) Increase $ per drop
and please add a pause button. For a wave based upgrade shooter game, there has to be a pause button.
I understand wanting to make money from flash games, but do we HAVE to have to have in game purchases for everything these days? We play flash games for short bursts to have fun. I don't have all day to grind out in game currency because the items in game are extremely overpriced to "encourage" using real dollars.
I was really hoping full speed upgrade would map my ship 1:1 with my house. Games with the "movement lag" really bother me if I can't upgrade out of it.