Despite some flaws like the story and linearity, gameplay was good.
As far I'm concern, we Nintendo fans always believes gameplay is first, in which case, Other M is very good, fast and responsive, flashy even. The way Adam has to autorize the use of some weapons or abilities fits with the tension of exploring an abandoned space ship, and not just running without sense destroying everything.
Samus left her tank body from the Prime Series to become the fast Samus from Super Metroid. Gathering all the beams combined left the sense of power and progression to the player, unlike Prime, where every shoot feels like a puzzle (especially Echoes).
Other M feels like a 3D version of the masterpiece Super Metroid. Nintendo needs to do a remake. Keep the gamplay but discard the story and Samus dialogues. Left only the inner ones.
Hopefully this year at E3 NIntendo announces Other M 2 fixing the problems.
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