I often hear that the level selected in Virtual Bart is random, but this is actually not true!
Depending on when exactly you press Start, A, B or C, you can get different chances of getting different levels! The goal of this Lua script is to display exactly that and explain (through the comments) how it was found and how you can use that information for your runs. I give a concrete example through the 'timing_mode', which I personally used for my No Damage Run of the game (you can find it in YouTube if you are interested). Of course, you can also use it for TAS to know when it's impossible to get certain levels, helping in your strategy planning.