When trying to do the "projectiles only" type challenge, invisible enemies just jump into me to their melee death. It makes the challenge pretty much impossible.
I end up replaying this game every month at least once, just because it's so addicting and the replayability value is amazing. I just hope for a sequel.
After so many attempts at the 18th level that it was starting to physically hurt me, I turned every light to green at the start and I won. This process repeated itself for ALL OF THE LAST THREE LEVELS. I felt like crying.
Press these to win!: (Up, Left, Down, Right) Just do this pattern over and over again, you'll never lose and your numbers will automatically merge and after a little bit you'll win.
It really should be specified that you need to stand by the door of the car to repair it, I wasted about 5 waves not repairing it at all until I did it by accident and realized it.
Strength, Defense, and Reproduction. Then just spread to every cell on the screen right at the start and reinforce anything being attacked. If this initial burst doesn't win it, just attack anything still being controlled with everything nearby.
Every time I play the "Meet the Vespitole" tutorial, no matter how many things I do in a turn (keep in mind that I follow the "tips" I was given) the enemy just wipes out everything I've done in said turn with skulls, and then I'm left to start over again on the next turn with nothing possible to stop the eternal flow of skulls onto my "hero"
On the second day I found Ragnarok. I then proceeded to use it the next day, whilst my mouth gaped and my eyes glazed over in disbelief and sadness over my shattered dreams.
It seems like a really good idea, and the way you're doing things is great. I think once some more updates are made then this will be a lot better, but for now, it's a little boring after playing a few maps.