How do you say "I'm gonna get you!"?

Question

When I'm chasing my baby around the room, I frequently tell him, "I'm gonna get you!" and catch him and tickle him. Is there a similar expression in Spanish? I'd love to find something that can be used everywhere, but regional answers are appreciated as well. It should express that we're playing, not that I'm going to get him because he's in trouble or anything.

Answer 1

I would say "te voy a alcazar !

Answer 2

Hello! I am a native Spanish speaker, and I would say "Te voy a pillar!" I hope that helps!