Rlellow Bloon

as it's name suggests, it is a combinatiom of the Red, bLue, grEen and yeLLOW bloon, and it moves at the speed of a green bloon and pops into red, blue, green and yellow bloon, appears at round 15

Trivia

 * despite being Rlellow, the red, blue, green and yellow must of fell into the bloon combiner before the this page is created
 * it only appears once