In the dojo, a hologram of a punching bag yet its laser doesn't have a source. You hear incomprehensible speaking from a loudspeaker that doesn't seem like a language. You show signs of confusion and now hear enthusiastic versions of incomprehensible speaking. The punching bag was here, so you decided to practice with it. And the voice, yet again, was talking just as excited as that swahili-speaking football announcer. After a few "KIA"s and "HOOYAH!!"s, a conversation seems to be happening within the loudspeaker, then the hyped dude started speaking english.
"Need sharpen you skill". It doesn't seem like they speak any english, or even have cultural references to what it was like on earth. A second hologram appeared next to the punching bag of an alien doing absurd moves. You asked the announcer to make it more possible, he refused after an incomprehensible conversation because of "Deez Nuts". Confused, you try to execute the move anyways since there is nothing else you can do right now. Like, what are you going to do? Escape a doorless airductless windowless room via car and play some video games? Of course not! Anyways, you actually succeeded at the move. The Martial Artist hologram now does a move that normally bends all earth laws of physics, so you complain to the loudspeaker.
Enjoying this book? Seek out the original to ensure the author gets credit.
No incomprehensible dialog or english anymore, now they are flashing the room 3 times, pausing, then 5 times. Well, that's certainly convenient! What are they going to do now? Set up a test figh-- Oh wait a minute, here it is! The alien in the hologram suddenly turns solid, pointing to itself and saying "LOSER!". It manages to hide 1/3 of its body and attack you from behind even though you were facing towards it, eventually beating you in a matchup. The announcer was so disappointed you could feel it from here. The announcer called for a meeting while uncovering a "secret" door to go there.