Gon heard Tsuna’s trip and the sound he made during the trip. He grinned widely pinpointing Tsuna’s exact position from that. "Ah!" He almost echoed Tsuna even though the sound had a different meaning altogether. Gon rushed forward blindly attempting to tag Tsuna. It would do him good to be "it" for a while, that is if Gon could catch him without hitting something in the process.