I love time travel the most!

(Anime/Comedy Crossover) Good news: I transmigrated. Bad news: I died. Good news: I have a cheat code. Bad news: I can't use it.
Kobayashi, who transmigrated into the world of "Konosuba," thought she had successfully tricked Aqua into giving her a super powerful cheat, but due to Aqua's carelessness, the cheat was not activated and could not be used.
"This is outrageous!" Xiaolin cried out, clutching his head.
Fortunately, Aqua was forced to go to the next world not long after, and Kobayashi, who successfully activated her cheat, thus reached the pinnacle of her life (crossed out)... and embarked on a path of madness.
Konosuba, Clockwork Planet, Akame ga Kill!, Machine-Doll, DanMachi, Re:Zero, Overlord, No Game No Life Zero, etc.