Climbed the Final Tower. Probably one of the most fun platforming bits I've done out of these Tower Challenges. A good balance of patience, timing, and understanding of how your abilities work in tandom with Sonic's movement and platform placement.
Also, I totally understand why this is the only tower with a button at the top. BOSS RUSH IS THE TRIAL CHALLENGE! And it's a heafty one. You have to fight near FLAWLESSLY with fixed/reduced stats. I've made it to about halfway through Wyvern's health. I need to learn Perfect Parry better.