I get very bad motion sickness when I play osu!mania, and I know many other people do too; however I do not get any motion sickness from osu!standard. So, what I propose is a new game mode that would use the osu!standard approach circle style as the interface while using the multi key style gameplay from osu!mania.
Some ideas of how to implement this:
1: Placing notes into key columns for example a J column where the indicator of when to hit the note in the J column is given by an approach circle, and hold down notes would be displayed as a slider-like object. Once the column reaches the top or bottom it will reset to the opposite side.
2: Using a key indicator to tell the player what key to hit such as: having red be J, or a square be J, or simply just playing the key in the circle.
Some ideas of how to implement this:
1: Placing notes into key columns for example a J column where the indicator of when to hit the note in the J column is given by an approach circle, and hold down notes would be displayed as a slider-like object. Once the column reaches the top or bottom it will reset to the opposite side.
2: Using a key indicator to tell the player what key to hit such as: having red be J, or a square be J, or simply just playing the key in the circle.