Beatmap collaborations, or collabs, are single storyboards or songs. 6g5u1s
Beatmap collaborations usually have the word "Collab" or multiple names attached to their difficulty name or 1 and use them consistently throughout their mapping careers.
The mapping process usually starts with the measures. These parts are then assigned to each collaborator according to some agreed-upon distribution, such as by even or odd segments in the case of two mappers.
Mappers complete their parts by laying out the .osu file.
Although mappers usually rely on the parts already completed to make gameplay transitions as smooth as possible, there exist so-called blind collabs such as Mao, where the mappers cannot see each other's parts until the beatmap is finished. In such cases, hit objects are typically placed at the ends of each section beforehand to indicate where to continue from.
For example, ↑