I actually took the time to clear out the entire map, and was disappointed to not get an achievement. Oh well, heh. Otherwise it would have been a 5. And maybe a few more jobs, seemed a little short to me, with so much of the map left after completing the final objective.
There's some kind of glitch preventing me from continuing, I can buy cooling level IV because every time I get enough money, it says I already bought it. What do I do? Otherwise, Great game.
Easy cool little game ^^