hold the down arrow key then any stationary attack, eg punch, and you will slide around the floor doing attacks that should be forcing you to stand still.
lvl 5 isn't that bad, i did it in 12:50 game time and probably like 7 min irl after the time i sent sped up. get a bunch of reactors were ever you can destroy the top layer of the cave at the bottom misslie launchers blasters maker and all that. i charged my makers then bursted them on the left side so i could put a micro rift under the creep before it went back into place. then i could build lasers and launchers right next to it, which made short work of it.
death runner lets say 20gems are 500k. if you gave away a gem a day it would be the same as giving away about 25k wich is a bit much, and it would mess up the market for gem items and stuf
if theres just one healer left is it realy nesisary to send him out, even though he can raid anything and he will just die for no reson? I know when they die they drop some coin but cant that just be added to your score and save you the trouble?