Cool Cool Toon (クルクルトゥーン?) is a rhythm-based music video game exclusive to the Dreamcast. It was developed and published by SNK and released in Japan only on August 10, 2000.The letters A, B, X and Y appear at the edge or in the middle of a large circle on screen. The player must use the analogue stick to move a marker to the letter and press the corresponding button on the controller at the right time. If the player misses too many letters, they will fail.

Cool Cool Toon (クルクルトゥーン?) is a rhythm-based music video game exclusive to the Dreamcast. It was developed and published by SNK and released in Japan only on August 10, 2000.The letters A, B, X and Y appear at the edge or in the middle of a large circle on screen. The player must use the analogue stick to move a marker to the letter and press the corresponding button on the controller at the right time. If the player misses too many letters, they will fail.