Hey! Here's how to achieve that classic 8-bit camera lock in Construct 3:
Clamp Camera Movement: Use the "System > Clamp" behavior on your camera's Y position. Set the minimum and maximum values to restrict vertical movement within the desired range.
Track Player Horizontally: Use the "Lerping" function or similar to smoothly follow the player's X position while keeping the camera centered.
Trigger Offset on Borders: When the player reaches the top or bottom borders (check Y position), adjust the camera's Y position slightly to create the offset effect.
These are the basics, but you can adjust them for your specific needs. There might be tutorials online for "Construct 3 camera lock" that show this in detail.
Good luck building your game!