It would be great if we could shoot missiles instead of weaving and praying for our defensive lazers to their job. Also, it would be great if enemy ships either couldn't be flown through or didn't deal damage when they are
This game is not particularly difficult, the key, if you're having trouble, is continue completing the levels that are easiest for you, read the tips included in the game guide, and reallocate your skills points based on which gems you have to use in the various levels.