I cannot recommend trying to do level 47 with a touchpad >.< Great game, but it lacked alternate solutions, i only think i found a single shortcut through the whole game.
I do not know why so many say they have problems with The Bowl. Only time i got into a little trouble, was when i got bored and started building speed and storage like crazy ;-)
Just hurry in the beginning and fill your crater with collectors and put a couple around the edge (4 should be enough to start with).
Then just upgrade your infrastructure and take the points one at a time, by sending like 5 drones, sending a couple of blasters (again 4 should be enough) and connect them with a relay. Rinse and repeat.
It is nice how you can use different approaches to the levels with the genomes. I based my virus around speed and reproduction, and it worked like a charm :D
I just started from level 1, with a fully upgraded base and tank, and then left the game alone for a couple of hours. So i can now confirm that it is possible to finish the game without lifting a finger. :P
It seems like there is a bug when choosing new weapons. If you click on a slot there already is occupied, then the existing weapon vanishes and the new weapon gets its place (unlike when you do it at your family screen, where they get switched around).
Ice demons aint imune to frost, and fire demons take full damage from fire, then why have different enemies at all? However the mini demon attack were great (and nice for xp-farming :P).
Windmills are everything, i almost skipped Japan altogether, and would for sure have done it, if i had remembered to buy the mystery upgrade before take off :P