You can gather diamonds by progressing through the different levels in the game. The more diamonds you collect, the stronger your character becomes.

Choosing the correct door along the way boosts your power, which makes it easier for you to defeat the boss and advance to higher levels.

Yes, you can replay levels to gather more diamonds or to choose different doors that may provide better power boosts.

There doesn't seem to be a specific limit mentioned. The stronger you become, the easier it should be to defeat bosses and reach higher levels.

The primary method to enhance your strength is by gathering diamonds. However, choosing the correct door also serves as a power-up mechanism.

While gathering diamonds is crucial for enhancing your strength, the game seems focused on progression. If you don't gather enough, you might find defeating bosses more challenging.

It's not specified whether there is a tutorial. However, the gameplay mechanics are straightforward, focusing on gathering diamonds and choosing the right doors.

As with many mobile games, Blob Man Run likely allows offline play, enabling you to gather diamonds and progress through levels without an internet connection.