positive

Valentin... this person entered a cheat code without explaining this action afterward.

Possible Scenarios:

1. He was joking.
A normal person would say that he was joking. He didn't say that. Only the next day, after my question, did he give an answer.

2. An attempt to cheat.

Since there were no explanations in favor of Scenario #1, I will stick to Scenario #2.