A DKjr '12 remake wouldn't do much new stuff, DK'94 already cribbed a lot from DKjr so there's nothing unique left.
Metroid 1 isn't that confusing once you get used to the way it thinks.
1. Advance slowly, kill everything you can. Keep the enemy counts low to avoid hits and recover health.
2. Rooms aren't dead ends, if it looks like a room just leads into a wall it's a secret passage. Also check the floor and ceiling regularly.
3. Boss lairs don't contain interesting stuff, only go there to kill the boss and open up Tourian.
4. Use bombs and missiles in combat, your beam is practically worthless beyond freezing enemies.
I like how the game actually makes 4. a good idea. In later Metroids the bombs are fairly weak and the missiles are unnecessary (either your beam will do the job or you need super missiles). I played through it and the only time I used a guide was to figure out where the wave beam is (when I learned about it I was just about to enter Tourian and as you all know you NEED the ice beam if you want to kill the Metroids)