After playin a level or 4 I notice I can in fact attack. By clicking on the right(->) side of the screen.
Just in time for the boss battle...
Which was boring as I could only hope to have the "ultimate power" abiltily in time for the meteor. I hope it improves. It could be fun as a mobile game. But with this little amount of influance it's too dull.
Player EmPowerment!