The Entire Nintendo 64 Library Now Has Rollback Netcode - Kotaku

"Thankfully, there's now a third option: , a fork of the original RMG Nintendo 64 emulator that just received a v0.9.4 update on May 14. The update doesn't just allow you to play Super Smash Bros. with rollback netcode, though-it allows you to play any multiplayer Nintendo 64 game with rollback netcode, and the results are incredibly impressive."

"If you're wondering why this is a big deal, fighting games are a nightmare to play when using standard, delay-based netcode. For a lot of competitive games, using delay-based netcode usually isn't a big deal, but when two frames can make the difference between connecting a hit and eating a twenty-minute-long combo, it's just not up to scratch."

"Rollback netcode, on the other hand, is straight up wizardy. I've been playing fighting games since I was a kid, and it still impresses me to this day, as rollback netcode essentially predicts what the most likely input will be in a given situation, and, as the name implies, rolls back to a previous frame if it gets it wrong. Unlike delay-based netcode, this allows for incredibly smooth matches, even if you're not using a wired connection."

"This might look like abysmal dogshit, but this is demonstrating 4f rollback netcode for 64 at 320 ping (You would need at least 10f for kaillera/delay based) Grab the early PoC build below! https://t.co/kRDL3uoHe0 pic.twitter.com/DwKlwFH4ZV"

RMG-K, a fork of the Nintendo 64 emulator RMG, received a v0.9.4 update on May 14. The update enables rollback netcode for Super Smash Bros. and for any multiplayer Nintendo 64 game. Standard delay-based netcode can make fighting games difficult because small timing differences determine whether hits connect or long combos occur. Rollback netcode predicts likely inputs and rolls back to a previous frame when predictions are wrong, producing smoother matches even without wired connections. Early proof-of-concept results show 4-frame rollback performance at high ping, outperforming delay-based approaches that require much higher frame delay to function acceptably.

Read at Kotaku