Aiming is not that hard if you read the instructions. Still playing Achilles is much easier to aim on the first levels. Heracles can be challenging if you don't upgrade Strength... Harpies can be hard to hit, you just need to aim high like it says on the instructions.
Should be a way to skip tutorial.
I didnt have the patience to do it twice , since i crashed because i got bored of tutorial.
Aside from that , it seems like an excellent game.