Kart Krew's Smart Tether 4.0

I really like this mod and did have fun with it but it does gets hard to play and/or annoying when people won't try to work together.

This is reminds Knuckles Chaotix

I like this a lot! However with some custom characters can't use there custom one ability because of it, perhaps you could make a command where u could map the "HOLD!" to another button.

Pretty cool mod that brings a lot of needed features to the Combiring scripts of the past and sadly still no single-player compatibility, but where's the grabbing mechanic?

That was a really big part of Chaotix's whole movement system and having it gone here really impacts how sluggish and sometimes repetitive a great deal of the game can be without proper player-slinging to traverse areas with verticality in a snap. The closest thing to this in the mod's current state is Knuckles players going against everyone's movement and letting go only to hold again when being slung forwards, but that often gives no height benefit at all.
Considering how there's more players rather than just one extra this time around, you could make grabbing a little more like how Heroes does it; using 2 players on both sides and throwing first right to left, but still functionally the same to the Chaotix method.

Either way, without this feature, the mod still manages to deliver a pretty fun and enjoyable co-op experience with 2-to-3 players (I haven't been able to test with more.) Hitting a few road bumps on occasion, but for the most part, able to get back on track with little issues.

this is a really new experience,now we can really enjoy this in a new way

Brings a new spin to cooperation, something I personally felt SRB2 needed for awhile. Coop always was a mostly single player experience, and I feel this addresses it in a way that encourages everyone to work together, with none of obnoxious drawbacks of similar concepts.