After finishing the maze there is a roadblock at the bottom of the screen after talking to the girl who tells me about what happens if I step into water and there is no column above me... Is there a game beyond there?
It's a puzzle. You're only half-way through the first level.
I already know vim keybindings and this part stumped me for a little bit. I think that, while the rest of the tutorial makes sense without listening to the people, this is the only part where it isn't obvious from the environment what you're supposed to do. Just a thought.
No it's not over, use what you learned from her to advance in the game