how long is the game only up

There isn't a fixed time to complete the game "Only Up!" as it varies greatly depending on a player's skill level, experience, and how well they can handle the challenges. 

For beginners
Newcomers to the game often struggle significantly. They might spend hours or even days just trying to make some progress. Beginners are likely to fall off the climbing path frequently due to the game's steep learning curve and the high - precision required for jumps and maneuvers. For them, reaching the end could take an extremely long time, perhaps dozens of hours or more. 

For experienced and skilled players
Those who have mastered the controls and strategies of the game can complete it much faster. Highly skilled players with good reflexes and a deep understanding of the game mechanics might be able to finish it in around 30 minutes to an hour. However, this is still a difficult target and only achievable by a small fraction of the player base.

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