If you want an easy way out of this just hit a block and colour it in with a washable marker, do this with all of them and you have a solved maze on your hands.
the way you kill the dog type thing is you stand right next to one of the barriers, for the first bit the dog jumps only above you and it won't be able to touch you so when it turns your back to you just shoot it this doesn't always work though at some point you need to move because it'll lunge at you head on
Needs more ships and the ability to combine ships. Needs a suicide button because the whole "ballistic" thing kind of sucks. Maybe some boosters would help some.
But its educational. sort of....