Hold to fly and to create lightning which will kill each enemy that lightning collisions with. Each enemy wants to destroy Asgard, so dont let them to avoid lightning and dont let them to touch you, because that will kill you. Sometime when you kill spider, dragon or other kind of strange creature you can get coin, which you can use to buy new helmets.
Young Thor is a game with great gameplay, a lot of hard and interesting levels, cool and scary enemies, wonderful graphics, nice game effects and excellent soundtrack.