Hey, cool game.
As a user experience thing, I’ll say that as someone who doesn’t entirely read things carefully enough the first time, I was inputting just 1234 instead of passcode(“1234”) and wasn’t getting any feedback from the terminal that it didn’t understand what I was doing, so I assumed it was just the wrong code.
I also crashed on level 2, I killed one ninja (I like your ninjas btw) and it froze when the second ninja I tried stabbing killed me. I had visited several of the circle nodes but wasn’t near any at the time.
Might wanna make the circles change colors if you’ve visited them before, it’s hard to know where I’ve been, at least as long as the levels have the same look throughout.