I have been quietly working on this project alone for the past few months. I had the idea of trying to combine 2 mechanics in different games to see how well it played out, and Sonic + Portal seemed like a great combination in my mind, as they are both momentum-driven games. It has hurdles to overcome when designing though, as combining a colourful fast-paced platformer with a slow-paced grey themed puzzle game, but it's worked out pretty well in principle. There's a handful of other features that I have created but they are untidy and not adequately presentable right this moment, but I reckon I will show them soon. I felt like sharing videos to see what people think, as I haven't received any feedback since I have worked on this alone and not posted about it anywhere online. (Although I received feedback from someone in my life whom doesn't enjoy Portal's gameplay mechanics, so at least there's that lol.) There's so many quirks to deal with in the game that I am feeling kind of burnt out and am beginning to think I have made a boring-ass project that is going nowhere.
No demo for now. It's functional but still contains many glitches that aren't straightforward to iron out.
Even if you are aren't a fan of crossover games, or a fan of Portal at all, or if you literally think "cool" or "crap", all feedback is greatly appreciated!