Radical Red Documentation [portable] Today

The doc explicitly states the level cap for each boss (e.g., Level 27 for Lt. Surge). If you grind to 28, your Pokémon will ignore commands. Use the (given at the start) and the Pomeg Berry (to reduce EVs) to manage your level without overgrinding.

Radical Red allows you to catch every Pokémon from Generations 1 through 9. However, their locations have been shuffled and reorganized based on environment, time of day, and rarity. Radical Red Documentation

To master this game, you need to keep these specific spreadsheets and tools open in your browser. These are regularly updated by the developer, Soupercell, and the community. The doc explicitly states the level cap for each boss (e