VEXX UNLOCKABLES
Alternate ending
Go to Timberdale. Go to the sundial. Set it to either of the golden dots (sunrise or sunset). Quickly get back to the hub and enter the Shadowrealm. The ending sequence will be different, with Vexx will flipping off Yabu.
Extra lives
On occasion, if you knock an enemy off into a bottomless pit or well, the combo counter in the right hand corner will continue to grow. If this happens, go around and do a half-decent air juggle to receive extra lives. It is possible to score 2,500 and get over 10 extra lives.
Quick save
If you found a diary page or an extra life and need a quick way to save but cannot find a new heart, do not collect a heart you previously acquired. Instead, go to Darby's house on Timberdale. Teleport into the picture and pick up the Crimson Key. This works with the Air Suit, but Timberdale is quicker.