Report: Test subjects S, A, and T are responding very well to experiments. Proceeding to phase three.

Sonic, Amy, and Tails are still stuck in Eggman's evil tower and being subjected to his increasingly crazy tests. It doesn't help that Tangle and Belle have unknowingly begun controlling the tower and are making it impossible for their friends to escape! Everyone's limits are pushed as they try to make it out in time in "Test Run," part three!