Bad Toast is essentially a puzzle game with a bolted-on and entirely irrelevant backstory. The title refers to a "toast" you made at a dinner party the night before - apparently your host took it the wrong way, since you've woken up in a dungeon.
Your task, obviously, is to escape. You do this by solving a single, very easy puzzle, and once you've done that the game essentially just stops. I gave it a second play-through, deliberately getting the puzzle solution wrong, and discovered that the solution is hardcoded (though it could have been randomised without too much trouble) and as soon as you make one wrong move the game is immediately over, so even if the puzzle was nontrivial you could solve it relatively quickly by trial and error alone.
There's pretty much no attempt to implement anything other than the five switches needed to solve the puzzle. There's very little of substance here at all, in fact. The best thing I can say about this game is that the spelling and grammar were mostly OK.