Sometimes, your Mach Speed, Slow Motion, or Zoom In power will have effects on items. If you are in Viewtiful mode and your Beam Watch is glowing a rainbow color, it indicates one of you VFX powers will have a effect on an item
Hint: Very fast attacks
To do a very fast attack, go into Zoom mode and hold R (Mach Speed). Then, hold Kick and you will keep spinning, doing damage to everything that approaches. When you hold Punch, you will start punching very fast and start moving forward.
Hint: Avoid losing health
Use Slow Motion before you something hits you. You will not lose life, but you will lose VFX.