Tips for Speed Razor (hard) achievement:
1. Reset (press R) until you find at least 2 tombstones close together, preferably 3 or 4. When he chases you to use his beard attack, position yourself so that you can hit him and multiple tombstones at the same time
2. When he goes into the sky to drop bread, just keep hitting tombstones, do not waste time hiding under platform unless you're at 1 life left. If you do die, your tombstone cluster will gain another tombstone, speeding up your XP gain
3. When he shoots his laser, get behind him and keep attacking to get
high combos/XP
4. Get max level before killing him and get him low (5-10hits from death).
Bait him to left edge and keep hitting him to the left so that he dies at the left edge. Then when he turns to a skull, keep hitting him to the left edge and you will kill him without him shooting a single fireball
Using these strategies, I got a winSpeed of 2848
Good Luck!
 "Castle Crashing \"The Beard\""){kind=icon}