Can you make it to the end of these word ladders?

Those are the basics, but here are some "good to know"s:

โ€“ You can only use the same word once in a game

โ€“ Including rarer letters will increase your score

โ€“ There are three levels, where the locked letter changes (and the difficulty ramps up!)

โ€“ There's no timer, so feel free to ponder fun and/or rare words