The short answer is that the physics is from the original CELESTE (Classic) game/engine, and this was my very first mod of it. Have learned a lot since then. :')
Meep
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Thanks for the feedback! :D
Staying close to Celeste was an artifact from this starting out as some high effort joke where I snuck a portal gun into Celeste Classic, and with all the people helping out being from that game's community. It gets somewhat tied with the Celeste Classic lore eventually to somewhat justify the theme. :P
I see what you mean about the physics- I couldn't find a very satisfactory solution and largely based it on this really old 2D Portal game made in Flash which controlled and behaved similarly. Perhaps some short frame window where controls are flipped upon exiting a portal?
You can find standalone versions (as well as a practice mod) on the Celeste Classic community's page :) https://celesteclassic.github.io/
To get that you have to do a diagonal dash from far back enough that you brush your head on the ceiling and not go as high- you avoid the spring entirely. This 100% run shows it :)
https://www.twitch.tv/videos/387866493?t=1m34s














