I think the biggest thing is, if you like a 2D Metroid game, you'll really enjoy this, if not then there are some things to critique. There a lot of re-used enemies; the bosses are cool and challenging, but not frequent enough; I found the game routed you really well so no level grew stale, but the constant hopping between areas didn't lend itself to creating a sense of progress or forward momentum (esp. with the loading screens, Switch Pro plz Nintendo!). All that said, fighting the final boss and learning the dodges/attack windows really delivered and leaves a lasting memory, so I really enjoyed it overall.