Hints
It's as important to dodge and weave as it is to shoot things, preserving your energy for the much tougher boss fights.
Don't be shy about shooting, sending out a blanket of bullets is a good way to keep the screen clear.
The weapons you unlock are deployable with a tap on the icons near the bottom of the screen. Useful if you're in a tight spot.
Atlas is an action-rpg with rogue-like elements where you use your ability to control the ground to fight the enemies and move through procedurally generated worlds.