Walk as quickly as you can through the first two rooms.
Attempt to perform Terrapin Manip, but don't reset if you miss it.
Example of how this looks in practice: http://www.twitch.tv/millnium/v/47941768
It is important to use the specified attacks. If you do not use 5 Jumps, your Jump will not be strong enough for Hammer Bros.
BOWSER'S KEEP | MARIO'S PAD