After gaining lots of feedback from the community of players on various platforms, I've implemented them to create the next version of Pedra Crystal Caves.
Besides a few bug fixes here and there, additional features include:
Once you gain a Pedra upgrade, you keep the upgrade - forever
The Crystals you collect throughout the game remain with you after you finish a game
Same starting point for each cave after losing a life
Additional music options
Upgraded graphics
This is in a final testing phase and will be released very shortly.