Excellent points! Bigger hitbox sounds good, missed a few guys i expected to eat. The timer is fine for the jam, but i agree that it could be improved - after all you have little time to watch the timer, thus it builds little tension. So a in-map solution to end the game would be good. Also, jumping down from ledges :D
It could also be interesting to have someone (like a jeep with the sleeping dart boys) chase you and you using your big legs to jump on the ledge, where the jeep will not be able to follow thus making some time for you. Though i am sure it is difficult to balance and make feel right.