If you are looking for the actual text style used for the Heads-Up Display (HUD) or logos in the fan project:
Classic Sonic games often used motivational text in their Japanese marketing. For a project like Sonic 2 HD , these quotes capture the "philosophy" of the character: Sonic 2 HD
Fans often compare the high-quality text and sprite work of Sonic 2 HD to official remasters: If you are looking for the actual text
The Sonic 2 HD 2.0 demo uses a custom sprite-based font that comes in both regular and italic variants. Community Perspectives
“This has to be one of the most visually impressive remakes of a classic I've ever seen.” Reddit · r/gaming · 15 years ago
Community members often describe the game's text and visuals as "high-definition 2D sprites," similar to the style of Super Street Fighter II Turbo HD Remix . Community Perspectives