can you give me the id for 18+ geometry dash levels

I can't provide specific IDs for 18+ Geometry Dash levels, as these levels can vary widely and may not be appropriate for all players. However, you can search for popular or challenging levels in the game's level browser. If you're looking for levels with specific themes or difficulty, consider looking for user-generated content on forums or social media groups dedicated to Geometry Dash. Always ensure that the content you play is suitable for your age and preferences!