That took longer than planned by my video is up. Spoilers galore since it's a playthrough. Lovely work in the jam. :)
Thank you for bringing this game to life with your neat voiceacting! :-)
Regarding the buttons - I actually forgot to put one more number in the third sequence. There should be a "3" at the end of the sequence for "C", I fixed that in the newest versions. Glad you could solve it despite this mistake.
That is strange... Have you already pushed once? Maybe you missed the red light? If you push a second time without having travelled anywhere else the red button does nothing. (and the hero says so) A telltale sign that shows if you've already travelled or not is the blackboard. If there are colors and things like "A-B" on the blackboard, you are where the red bulb transports you to.
Thanks for the pictures.
Oh dear, that's annoying. I can't reproduce the error. I tried several browsers and it worked for me. :/ I will look into it, but my hope to find the mistake is low. I don't think it is related to the browser, but just to check - which one are you using? And which os?
(If you are still willing to play my little game and are using windows, there is always the downloadable version.)