Collide with blocks that match your color to remove them from the level and proceed downward, earning you points along the way. Hitting blocks of any other color ends the play session, and prompts you to restart. Some blocks change the direction of your movement, while other objects can speed it up. If you fly through green rings, you become temporarily invincible and can collide with any color and even spike balls.
Here's a link to the itch.io page: https://revel-notion.itch.io/hasty-hues-3d