My opinion about the game overall:
If you were expecting a funny/punny review then you came to the wrong review. I decided to make an actual helpful/serious review for the game. Let me start off saying this is a really great game and is a real and serious game despite looking like a joke, back when I saw this game in Greenlight I laughed and gave it a vote expecting it to be a game that wouldn't even get to a full release, when it first came out my friend bought it so I went to his place and played it for a few hours, after playing it a few times I decided to buy i. Aas it got more and more updates it got better. A lot of people say the game is hard to play with a keyboard but I disagree, back when I first played the game I didn't have a controller so I played it with a keyboard, after a while, I got a controller, and the only thing that was hard about playing with a controller was that sometimes I got confused with the buttons' names, overall it's better with a controller. Awesome game, they really put a lot of work to it and listened to the community throughout the making of the game.
Cons and pros:
+Remappable keyboard controls
+Changable sensitivity
+Graphic options also pretty customizable
+Great graphics
+Great support from the devlopers of the game in issues you might run into
+Achievements
-Controls can take time to get used to
-New players can sometimes be annoyed by the game's challenge but that's pretty subjective
Gamemodes:

Story mode: At the beginning of each level you are presented with some sort of letter about an insane guy who's also the house owner, you finish reading it or skip it and you then spawn as a piece of bread at the start of the level, at some levels you have extras you can add to yourself like jam and butter which have some side effects. You travel through the level possibly using various objects on the way to eventually get to the toaster or pan or whatever else you want to fry yourself on, in most levels there is more than one way to toast yourself. You get a grade based on your edibility, tastiness and possibly your time but I'm not sure about that, grades are from A++ from F(you only get f if you didn't finish the level). Story mode is overall challenging and my personal favorite. There are 8 levels in the story mode game mode.

Bagel Race: In this gamemode you spawn as a bagel in a different spawn than your spawn points at Story Mode, you need to run through the map using 3 and 4 keys(by default assuming you're using the keyboard) and the mouse and pass through checkpoints on the way to the end, you get a grade based on how fast you completed the race. There are 8 levels in the bagel race game mode. You have no edibility in this game mode.

Rampage: In this game mode you play as a baguette. In this mode your goal is to cause as much damage as possible to various objects around the level, the more damage you cause the better grade you are gonna get. You have multiplier for everytime you smash a few things at once. You have no edibility in this game mode. Rampage has 8 levels. You have a time limit at this game mode.

Cheese hunt: In this game mode you play as a crackbread. In this game mode you spawn as crackbread and start wandering around to find cheese and touch it so it sticks to you, as far as I know there are 5 pieces of cheese in each level. you lose ediblity by falling and/or hitting something too hard. You have no time limit in this game mode. There are 8 levels to Cheese Hunt.

Zero G(ravity): In this game mode you play as a slice of bread. This game mode is pretty much the same as the regular gamemode only there isn't gravity and you need to fly around with jets attached to you. I cannot explain the controls to this game mode as they are very complicated to explain, the main difference from the main game mode is that your grade is also based off the amount of fuel you've used up(You have infinite fuel, you use up fuel when you use your jets). You have edibility in this game mode, you lose ediblity when you touch the floor as far as I know. There is no time limit in this game mode. There are 8 levels to Zero G(ravity).

I'll edit this to explain about the gamemodes left soon.