Movement is choppy except on axis movement, gameplay is nonexistant.
Collision detection is good for both grass and rock, so that works.
B- for basic physics.
Nice game, except for the fact that I needed to change the contrast settings a couple times to see the numbers, particularly the second board.
The #1 on the first board gave me the most trouble.
I didn't think that hobbits would stop the castle, and they don't. BUT, them and angels and a LOT of patience will eventually do it. The castle will get right to your door, but keep sacrificing hobbits, and you will get it done.
After trying 5-1 a dozen times, I finally got it. No tricks, just just and go back.
for 1-3, kill one animal halfway from the key to the end and it will drop as a step for the one that will get the key. 1 loss.
After finishing 19 (Oy!), 20 was a breeze. Just turn all lights green in sequence from left to right, behind a car going east. You can get 20 behind one car. I did.