on lvl 5 cave of trials ive tried all suggestions, but the main problem ive noticed is that, the invis goblin doesnt always stop to kill the goblin's ive spread out....
most of the time he will stop and kill a few here and there and then super fast just walk right through the next few and after doing this a few times it reaches my castle and kachings me lol
nice game but the having to wait 5 seconds after meeting the number of kills needed to move on takes some of the fun out of it.
much so in the later levels where you need to dodge your a** off and barely get the number of kills needed only to be killed by a stray bullet or super fast enemy.
yea the 2nd boss is a pain in the a** even with the right combo of weapons, having to be sure to switch off right while dodging those point blank attack from the time slower to main weapon is tedious.