For a first game this was quite nice! It was short, incredibly short once you knew how to sneak around the tortoises, but it played fine and it didn't overstay its welcome or become frustrating.
Doing the math questions was kinda funny and easy, and the stealth was easy enough once you got caught once or twice. Since there's such a short distance to cover restarting isn't too punishing.
And finally the mopping mini-game at the end was dirt simple but kinda neat, it was more interesting than simply pressing E on it and its all clean.
Also I liked the little "yay" shout at the end when you win, very childish and stupid for such a simple task lol.
Overall though I'm not exactly sure this fits the definition of "so bad its good" in my opinion. I mean frankly its not all that bad to begin with, more odd than anything.
Good job though, and congrats on finishing your first game!