Until I read this, I had no idea what Pizza Tower was. So no, no inspiration coming from there. Day Of The Tentacle did inspire the overall 'distorted' feel of the game, as did the Garbage Pail Kids, to some extent.
Glad you had fun.
Yep, there's a bunch of bugs; the game was done in a week, after all. But you just need to get close (within a 20kg margin) to the optimal weight to score, no need to get the exact weight. And the exact weight triggering as a fail is a known issue caused by the rounding of decimals.
Thanks for playing and glad you liked our little monster.