If you're searching for "dolphin games highly compressed," you are likely looking for Nintendo GameCube and Wii game ROMs (which are played using the Dolphin emulator) that have been compressed into a smaller file size for easier downloading and storage.
By using highly compressed formats like RVZ, you can shrink these files significantly (sometimes down to 20MB for smaller titles like Animal Crossing) without sacrificing gameplay quality [4, 6]. The Best Way to Compress: Use RVZ dolphin games highly compressed
Compression: Leave settings at default (typically Zstandard) unless you are an advanced user; defaults provide the best balance of size and speed. dolphin games highly compressed