i got a score of : 15250
but i couldent find the 10th doggie he wasnt on the map, so i just gave up and got killed,
the tanks when you move the tracks should move and an engine sound would be nice, the ai needs to be better all thay do is point at you and move if there a certain distance from you
some of the tanks when through the walls, i think you should have more enemys as the usual tanks just got boring maybe one that moves slow but shoots more bullets like a burst of 2?
you should have different levels ie: once you get all the gems it loads level 2, which is a canyon level for instance and instead of trees have tubleweed :-P
if you add those it would be a great lil game