How about a nice feature with the battle arena quests that makes it so when it gives you the quest it says what room the monster is in. Pain in the ass finding the dark lizard...
:D auto loot. I devised my own way of somewhat autolooting before (leaving my mouse near the ground by my character) but this is better :D also, time machine? what?
I think the problem with the badges not being given is that they are based off of your achievements. You should probably get the second badge after you get one more achievement. I don't think you can get the first one without restarting your game :(
Slammer is glitched. If you want to take advantage of it, be right on the tail of a car infront of you (touching the car right infront of you) and use it. It will blast the enemy to the left or right.
Here is a tip: All those things in the level that make it seem harder... think about that it makes the level easier. I haven't noticed any unused pieces yet.