I like the premise except for two things. 1) I spent most of my time spinning in circles checking for stealth tanks, while watching a tiny postage stamp radar in the corner of the screen. I'd really rather spend most of my time shooting at stuff. 2) No auto-fire means I have to hold the mouse button down just about all the time. It's just a needless annoyance. 3/5.
Puzzles are interesting, but the game never really sets up the scope of actions that are available to the player, so the game starts out frustrating.
Having to wait upwards of two minutes for tips is also frustrating. I started playing another game while waiting for tips, just to pass the time.
Some puzzles also seem buggy. Which probably means that I'm just doing something wrong, but it's hard to tell. Again, a frustration.
3/5