I'm confused at how you create such things in a short time span. Seeing your recreations of Station Square, Mystic Ruins, and Windy Valley made me feel so nostalgic. And yes, you did make me want a Sonic Adventure remake in SRB2. lol
This was a funny idea at a parody. It works on multiple levels, making fun of The Terminator Genisys and modern Sonic design philosophy. I suspect the idea just started with the fact that "Genisys" sounds like "Genesis." lol
Oh, and we get a new character with this too. It's basically just a reskin of Knuckles, with different sound effects, but it makes the add-on feel much more complete. Using your version of Knuckles, who often has a fake Arnold Schwarzenegger accent anyway, for the "Terminator" was brilliant.
You were right in that the mod has a bit of a slow start and tbh the Station Square segment might have been better off cut entirely (except for the cutscene, that was funny), but the rest is quite enjoyable. Extra points for being a level pack revolving around a single character, those are not common.
The ambition was nice to see too - you didn't give up in trying to make cutscenes work (what's here is simple stuff, but well done), the last level had an interesting atmosphere, and that was a cool spiral slope you had going in the Windy Valley stage. Or an *attempt* at one... not like mine are any better, hah. The "Kart Guides" section of the forum has a little something that can help you if you're going to make more of those in the future (the info there can be applied to vanilla SRB2 mostly as-is).
Besides, it has checkers. That makes it a good Sonic game.