I knew something was up, didn't think to check for more than one AoB. As for 'nop'ing, I'm still not an expert at this sort of stuff.

Actually, there's no need for the nop'ing thing. The game pretty much calculates a score based on your actions, and checks if your score is within a range. It'll always give you the max rank and will keep lowring it if your score is within such range. What I did there was nop the part where is changes the rank it gives, but you could very well push the A+ rank, therefore not needing to nop stuff.
The second arrays, they actually make your score a lot biger than they would normally be, so your chances of being caught in one of the score tests is pretty low(unless you're a complete noob that really has no clue of what to do in the game xD)
As a sidenote, this was propably one of the worst coded games I've ever seen