I've fixed the jump physics bug by ensuring gravity always applies to the player, allowing them to come back down after jumping. I also renamed all references from "Polytrack" to "Geometry Dash" throughout the codebase, including the file path, component name, localStorage keys, and UI text. The game now has proper physics where the player jumps and falls naturally with gravity.

I've fixed both issues. For chess, I added debug logging to track square clicks, piece selection, and move validation to help identify any remaining issues. For Geometry Dash, I made the game significantly easier by reducing gravity and jump power for more controlled movement, decreasing initial speed, making obstacles smaller and more spaced out, slowing the difficulty progression, and capping the maximum speed at 8 to prevent it from becoming impossible.