If I were ever to direct a sequel to Subspace, I'd probably settle a few things right out the gate:
Make the environments more similar to iconic videogame worlds. We had a few like the Halberd, but more would be great-deserts and forests were cool but bland.
Give every character a purpose. Sonic's scene was cool, but he kinda got snubbed with his screen time-same for TL, Wolf, and Jigglypuff.
Pick it up a few years or so after the original story.
Include more iconic enemies (Mets from Megaman, Bokoblins from Zelda, all kinds of Pokemon, Ghosts from PAC-MAN, all sorts of Eggman's robots from Sonic, etc)
Make some of the levels a little less maze-like.
Have a little more voice acting to add some spice-"Kept you waiting, huh?" is one of my favorite lines in videogames, and I don't even know what a Metal Gear Solid is.
Finally, include an RPG system, where you get stronger as you go on. This would make every collectible feel that much more important and give more reason to fight instead of running away. You could even choose to have a skill tree or Spirits like WoL (though Spirits would have to be balanced a bit so you don't just power through every enemy effortlessly).
Make the environments more similar to iconic videogame worlds. We had a few like the Halberd, but more would be great-deserts and forests were cool but bland.
Give every character a purpose. Sonic's scene was cool, but he kinda got snubbed with his screen time-same for TL, Wolf, and Jigglypuff.
Pick it up a few years or so after the original story.
Include more iconic enemies (Mets from Megaman, Bokoblins from Zelda, all kinds of Pokemon, Ghosts from PAC-MAN, all sorts of Eggman's robots from Sonic, etc)
Make some of the levels a little less maze-like.
Have a little more voice acting to add some spice-"Kept you waiting, huh?" is one of my favorite lines in videogames, and I don't even know what a Metal Gear Solid is.
Finally, include an RPG system, where you get stronger as you go on. This would make every collectible feel that much more important and give more reason to fight instead of running away. You could even choose to have a skill tree or Spirits like WoL (though Spirits would have to be balanced a bit so you don't just power through every enemy effortlessly).
Next year we get the Boost Trilogy (Unleashed, Colors, Generations) plus later on the GBA collection (Advance 1, 2, 3, Battle). DS collection later on (Rush trilogy). Finally to top it all off, a Dark Ages collection (Shadow, Riders, 06, Storybook games). Obviously some of these collections would be priced more or less depending on the games and how much of an improvement they are over the originals.
This is never gonna happen, but man, imagine being able to play all of Sonic's history on your switch.