I have 100% completion on some excellent Metroidvania games. The Messenger, Guacamelee, Bloodstained ROT and Steamworld Dig. Metroidvania is one of my fave gaming categories. Axiom Verge was promising at the start but after 6 or 7 hours it runs into a major flaw. The back tracking becomes a chore. I have no problem with back tracking and exploration. That's a part of the magic in a Metroidvania game. The difference is that all the games I mentioned have a means of teleportation to make the backtracking manageable. How can they not have teleports here? You wouldn't even need to explain why there are teleports in a sci fi world where the character gains the ability to literally teleport through walls. It's baffling. Even if there was no way to "fast travel" it might be fine if there was more incentive to mindlessly backtrack. All the games I mentioned you farm resources or XP while exploring and backtracking so it makes the pay off worth the effort. In Axiom Verge you might find 1/5 health nodes you need to eventually to boost your health. If you are lucky enough to find 5 your health goes up. While doing this though you move yourself even further away from your main objective with no way of easily getting back there. If you can even find where to go since the game gives you 0 hints. It zaps the fun out of the game. It also seemed cool at first that you have so many types of firepower but most of the time you just stick with your fave one because they are not different enough that you absolutely need to use all them. It's a shame because the story had some intrigue, the bosses were very cool, the music was ok and the platforming was pretty good. Could've been a great game but turned out to be just ok.