This is a fun game once you make use of the chain mechanic. If you try to play it like regular PvZ it's too difficult.
I think I got a bug (or maybe it's intentional?) but when I completed a full column of eggs and connected them all together, a lot of superchat appeared at once, making my total jump to 4500 or something. That made it very easy to spawn a lot of the fighter dragoons and win the game.
It would be cool to have on-screen numeric indicators of all the effects that are stacking on each dragoon. For example: +100 SC/second, +20 health/second and so on. You could maybe hold a key to toggle them on/off, so that the screen isn't cluttered with data all the time.
Good job!