I would like to create a "+1" effect, with text fading when the character gain a +1 score increment. In my game it happens when the user collide with proper brick. How can I create that text?
If the character is collecting a point/coin from an Action, you can use the native feature in Buildbox to show point/coin reward. (Check screenshot below) If the character isn't collecting any coin/point, you'll need to add an Advanced Move to the character and add the "+1" to its Animation. And then set the Event to 'Collision' and the Affected Asset to the proper brick you mentioned.