Thanks alot!
Thank you all for the feedback! I'm sorry for the bug that makes previously killed enemies disappear. There is a bugfix in the wiki. However, it is possible to complete the level without cheating. Just kill the top-right enemy first, then step backwards and the rest is settled. :)
There is actually only one level, and it was just my test level for the development. I did not have time to make a good set of levels. I have plans on making other types of traps and gadgets, like moving ground, user terminals, pre-programmed macros etc. It will be more fun when it's ready. :D