My only real issues are the inverted y-axis not being toggleable, the precision needed for 100%, and the camera clipping through walls(although that actually helped me find a few extra burgers).
The only personal(and therefore irrelevant, but possibly helpful to hear) issues I had were the belly looking a little weird at higher weights, the body clipping through itself at higher weights, and the fact you can’t get bigger.
Also, there aren’t any out-of-bounds secrets.
The game was pretty good, if a little punishing if done out of order, and Glaceon’s model was done really well. The graphics, even at max settings, are extremely smooth.