has anyone beat only up

Yes, some players have managed to beat "Only Up!". 

High - level player achievements
Given the extreme difficulty of the game, reaching the top is an incredibly challenging feat that requires a combination of excellent timing, precise control, and a lot of perseverance. There are numerous videos on platforms like YouTube where skilled players document their successful climbs to the end of the game. These players often spend hours, if not days, practicing and perfecting their techniques to navigate through the game's treacherous obstacles and reach the summit. 

Community and motivation
The achievement of beating "Only Up!" has become a sort of badge of honor within the gaming community. It not only showcases a player's gaming skills but also their determination to overcome one of the most difficult challenges presented by modern video games. Many players are inspired by these successful runs and attempt the game themselves, aiming to replicate or even improve upon the achievements of others.

For more Only Up!, you can visit this address:https://only-up.org/