First episode I didn't like.
I have 2 major gripes with this one:
First, we suddenly virtual game world. Yes, this was started at the end of last episode, but here they went full-in. This is so dumb. So far it was like a fantasy world with magic, connecting gateways between worlds. Now we introduce the boring, thousand-times done game world-gimmick. BORING.
And then he went into a dungeon by himself. There was ZERO reason for him to go into that dungeon at this point in time. He could have just left the key in his menu. Could have kept training himself. Could have asked others to join him. But nah, just go straight intothe dungeon at his still low level. So dumb.
Oh, actually 1 more complaints: The pentalty for not doing the exercises was way too harsh. How did he even survive for 4 fucking hours? Those centipede monsters should have gotten to him instantly. The way we saw him doge them via cameraman was Bugs Bunny-level of cartoonish.