Caves are the beginning of the game, the player is inside a tunnel of coins and obstacles, each offers a variation of either coin count, the player's speed, or both. The goal is simple: collect as many green, blue, and purple coins as you can while avoiding just about anything that is red.
The read Items are red coins, red sparks, and red rovers. Red coins subtract from your green coin count, red sparks take away your blue coin count, and rovers are meant to shove you out of the way while slowing you down