I too sometimes experience lags. Thankfully nothing major, but sometimes if it hits in the middle of a level, and forces you to start over, it can be frustrating. Other than that, it's a good game.
Oh yeah, regarding my previous comment on creatures in the back row; it is more annoying considering that back-row monsters have no problem whatsoever to attack you.
It's a bit unfair/annoying that you must destroy every creature in the front line before you can attack any creature in the back. Maybe if there's going to be a sequel, consider that creatures that are not behind an other one could be attacked for reduced damage or maybe some of the adventurers (the ranger and the mage) could attack the 2nd row. It would also add more tactical options.
I think it would be better, if the flying bodyparts of killed enemies were in the background, because right now they cover even the bullets, not to say live monsters. So on the 3rd level, when there are so many enemies, you can't see what you're shooting at, at all.
Oh, so I guess you meant to "collect 100 worth of gold coins" and not "earn 100 gold in one run";you should have said so :S Good game though this far, a bit laggy
Closed doors really make no sense at all, if the layout is linear and there is no other way to go. You will have to "pull the lever" anyway, so why not just line up the monsters that lead to the switch with those that lead to the door and skip the redundant button.
Okay, this actually looks like a good, fun game at first. But the AI is terrible, you must buy runes to win, the "side-quests" aren't worth it (harder for less money?!) and mostly are just frustrating. That is what this game is: frustrating. It doesn't really matter what kind of strategy you want to try, because you can't strategize. You get overrun by enemies and then you hit 'n run to survive while your "allies" just run around getting killed.
I know it must have been _tons_ of work to make this game. And it looks nice, the controls work fine and there aren't that many bugs and all;but sadly the end product is just frustrating. Maybe you could do patches or something? I liked Evilgeddon better. That has frustrating moments too, but you can actually strategize with your upgrades and what weapons you pick up etc.
Would someone please think of the QWERTZ people? Please think of the QWERTZ people! Thanks!
It's not particularly annoying in this game, but honestly if you can programme such a game, how hard can it be to make it QWERTZ (and other non qwerty layout) compatible? :S
 "A Dance of Fire and Ice"){kind=icon}
 "Clicker Heroes"){kind=icon}
 "Idle Blacksmith"){kind=icon}
 "DPS Idle"){kind=icon}
 "Dangerous adventure"){kind=icon}
 "Swords & Potions 2"){kind=icon}
 "Nether Runner"){kind=icon}
 "Mighty Knight"){kind=icon}
 "Pixelo"){kind=icon}
 "Sandbox Hero"){kind=icon}
 "StealthBound"){kind=icon}
I will let the composers know :)