Leaps and bounds better than the first, the removal of the energy system was better off, and I like that the missiles now transfer between levels, so how well you do continues on. Game was mostly dependent on guessing where the enemy would end up.
Only problem was lack of urgency and odd art choices. Like why are giant spiders crawling on a picture of a globe? If you had controls where you had to move manually and avoid shots, it could be a little better off.