It is possible to rig the slot machine so you don't have to click a hundred times waiting for a win. Turn the thermostat all the way up, then look at the bathroom mirror. "Access granted" refers to the front panel of the slot machine. Set the odds to 1:1 and win instantly.
May as well use a walkthrough, otherwise you'll be either (a) browsing in another tab and clicking back every few minutes when the cooldown timer on the hint button is up, or (b) trying every conceivable combination until you get lucky like your playing King's Quest or something. Some of the solutions are so unintuitive and disconnected from any sort of practical logic. I like the concept and humor and would like to see a more refined sequel so 3/5, but in this state it feels like busy-work.
Very fun game. My issue with the first game was that the best possible score for a particular puzzle was limited by the initial configuration of the pieces, that seems to have been corrected with the new scoring system. If I have a complaint it's that in the "large" arrangements of constructbox the nodes are tiny, so it's easy to accidentally click a node that's already been set and bring down your efficiency. Still 5/5 though.