Valllar, thanks for report this bug, but the problem is that I already knew about them
The first one was my mistake, since I forgot to put the portal (I will explain it below), this way the player will not get to this area and fall down.
The second one was "intentional", I disabled the other skills since it wasn't needed for the reason I published it, that is only get ideas and suggestions about the spawn method, like yours.
OK, let explain the portal thing: Have you ever played the game I mentioned before? If so, u'll know what i'm planning to do.. The thing is, in the end of the "level" there will be a locked portal, that will be only unlocked by killing the monsters till one of them "drop" the "item" needed to unlock it. I did it because my old version (link:http://www.newgrounds.com/portal/view/636410?id=636410) was so much "linear", the player couldn't walk freely in the scene, having to kill each monster after monster, making the game boring and tiring