This game is a joke. Important objectives are not explained, neither is where the exit zones are. I spent half and hour searching for how to finish the first mission, and had to pick up a specific corpse (not labelled, no indication this was needed) and move to a specific area (again, not labelled as the LZ). Expect to need a walkthrough to find out what you need to do. Pathetic.
This is the worst a metroidvania can be. Endless backtracking. Long hallways with locked doors down them, and slow lengthy boss fights. The worst of which shows how little regard the developer has for player's time. It starts out fine, then you release how long and repetitive it will be, and it wears out it's welcome long before it finishes. Screw this developer.