ugh... with the hint and even zooming in i can't find the armor on the friendly herbivore level... (found the teddy bear after a rather long time - it was just a misshapen blue blob!)
bug: pausing the game and going to the shop DROPS all newly earned cash. since this forces the level to reset anyway (with no confirmation!), at least let me keep my newly-earned money!
game is pretty awesome... but finding an object whose corner is occasionally visible only from one spot is a pain. if it wasn't for the hint button it'd be impossible!
recommendations: 1) add more... something as you go further right, otherwise getting spiked as soon as you earn enough for the next upgrade is the optimal strategy. 2) use some sort of Big Cheese instead of stars (more thematically meaningful). 3) maybe increase difficulty a bit, although you'll have to add more different kinds of hazards to do that
the aiming/screen-turning bit is rather annoying too, freeze the target in the middle of the screen and rotate the camera whenever the mouse is moved, not only when it hits the edge of the screen
speed-up and next-wave buttons would help. repair-all button. hotkeys for the buttons. the building mechanism is also glitchy - I can't see where the walls join up, so I can't build a straight wall going top-left since I can't tell which of the three positions it can land in is the right one.
or maybe increase hand size, so several different combinations can be chased at the same time... (e.g. you hold 5 cards, out of which best 3 are scored)
 "DuckLife 4"){kind=icon}
 "Memohuntress"){kind=icon}
 "Papa's Taco Mia!"){kind=icon}
 "The Love Letter"){kind=icon}
 "Burrito Bison Revenge"){kind=icon}
 "Killbot!"){kind=icon}
 "Proke"){kind=icon}
 "Einstein's Riddle"){kind=icon}
 "Save the Moon"){kind=icon}
 "Zombies, Inc."){kind=icon}
 "Colourshift"){kind=icon}
 "13 More Days in Hell"){kind=icon}
 "DSDefense"){kind=icon}
 "Stop The Bus"){kind=icon}
Depends what you're doing...?