Of course you can skip it. Youll come back to it when youre ready. It only takes a few hours to beat each of these games, you know? One big thing is making sure you are sprinting the whole time. It speeds things up significantly & most of the tough puzzles involve it (sprint!). ~ Super Metroid is the most dense. You might be getting this sense that the developers are trying to trick you into going around in circles until you look up a guide that reveals an extremely obscure brick you need to destroy to gain access to the next level.... so then you can learn about all their crazy tricks & cocooning move.....
You would be correct.
Play Super after you beat the other games
If you still cant get into Super, beat them again!!!
For the love of god please at least try to play Metroid 1987 (NES) & 1991 (Return of Samus) after youre done with Fusion.........