Thanks for sharing the videos on our forum (And proving on the Genesis version that Mayhem 8 works in under one minute).
Anyway. I've solved Hail 8 in 5 minutes and Hail 9 in 4 minutes. Nothing too difficult for 9, but 8 requires a little bit of precision to get the bashers in the right place.
For Blitz, I've cut the first level down to 4 minutes and the ninth to 3 minutes (Which made the level much more fun!
) For levels 11-13 and 15 I've cracked all four of those in two minutes. Replay attached for 11.
For Flurry, 10 can be done with 3 minutes, although it looks like 2 is out of reach. 13 easily works with 2 minutes.
Looks like this challenge is over now!