This game is still doing great, especially after the updates! However, I believe some features could be cut back in order to save code room, and perhaps make room for other features. I have listed features I personally believe to be extraneous below
1. The option to skip a heist - I never find myself skipping heists, as it is usually possible to come out with more money than you had beforehand regardless of the building's challenges and obstacles.
2. The ability to knock on trees to alert guards (and trees in general) - trees have always been quite a nuisance during heists, and I believe their presence in the game has almost no benefit, with trees blocking entryways and sometimes entire routes. They also hold little to no viability in distracting/alerting guards, as these trees are usually too far away for any guard inside the building to hear.
The alteration or possible removal of these features would likely benefit the game as a whole and allow room for further improvements upon it due to freed up space in Pico-8. I understand that these changes would be quite drastic and that I don't have much room for criticism having only designed a few small games myself, but I believe that these changes could seriously improve the game and make it an overall better experience for the player than it already is. To whoever you are, whether you're a random passerby, fellow enjoyer of this game, or perhaps even the developer; thank you for taking the time to read this!