Wow, that certainly is a rolling die, haha! That's the most creative use of the theme I've seen so far.
BTW is that made in Scratch? It's certainly an accomplishment to make anything in Scratch, much less a little game this fun.
1) That's the fun of the game, to figure out how the ICs work. (The way that one works is that the slider loads the number in your card into address 1, and the the target number is in address 0. You can either set address 0 to 179, the number on your card, or set address 1 to whatever's in address 0.)
2) Sorry! I'll keep that in mind.
3) It.... kinda... doesn't very much. I guess you have to take care to figure out what everything does, though?
Hey, wait, I made a game called Blindside!
Besides that, I liked this game, despite not getting anywhere. The cane mechanic was cool-looking and made sense. However, it was just too hard. I couldn't get to anything and spent about 5 minutes wandering not finding or hearing anything new. Maybe increase the radius on the cane tip. (If you had more than 48 hours, this could be a really cool game if you had really good sound design, with echoes, reverb, footsteps, etc.)