One technique that is particularly helpful againstmost of the Boss stages is to use the Slide attack. Use Slow +Slide repeatedly. This does a decent amount of damage in a shorttime. You can hit the Boss four to eight times if you are fastenough, while the Slow adds more damage to each attack.
When your VFX bar's first container is half full, useSlow Motion (hold L) and double jump. If timed correctly,you will do half the flip in Hero mode and half in Normal mode.If you want it to look even better, use Slow Motion and DoubleJump just as Joe transforms into Hero mode. If timed correctlyyou will do your flip with the transformation glow around you.
Successfully complete single player mode under theAdults difficulty setting.