Collision detection for sprite

Questions & Answers
1

For my 2d game, I want to detect collision between two sprites.
I don’t want to use any collider but I want to perform it manually.
I think I have to use rectangular region of sprite and use update method to check for collision but now sure about it.

So what is the way in unity for this?

2

You could use 2D colliders, and tags to separate one from each other? Via scripts ofc.