You may find digital keys from authorized third-party retailers, though availability is low.
To earn gold medals, focus on these scoring strategies found in expert walkthroughs :
If you encounter issues on modern hardware, these community-sourced fixes from PCGamingWiki can help:
Eat different colored berries to unlock special attacks and elemental powers needed to progress.
Use the Custom Resolution Utility to set your monitor's refresh rate to 60Hz if the game struggles with higher rates.
Stun ghosts before eating them to add an extra 300 points to the base 100-point value.