I found the "normal" difficulty far too easy, however "hard" is giving a nice good challenge and keeps me coming back. A few minor annoyances (cannot set attack priorities, would prefer a few late levels where you have full upgrades available, instead of just the final) but overall a great Kingdom Rush-style TD. 5/5
Dammit, spend hours beating hard mode and unlocking the cards, only to realize that multiplayer is only for another site and I'd have to do it all over again. Not cool.
OK, I have a good computer with 4 gig of ram, no other network connections open, and using windows with FF 3.5.
Still keep getting d/c'd.
This is the flash equivalent of Crysis. 1/5
Not only is the game terrible, but after persevering to get the damn reward it doesn't even credit me with a completed challenge.
Complete waste of my time.
Good concept, and I agree this is crying our for a multiplayer. Needs the ability to adjust game speed, and need to nerf the tactic of blitzing the opponent at the start of the game. Hope to see an improved sequel, as this deserves one.