Totals

Pit and Field

The field expanded 31 squares forward due to powerups.
The pit was expanding at a rate of 4.2 seconds, so that it reached a maximum y position of 84 and consumed about 75.68 % of the field.

In total, 59 items spawned.

Zarvox earned a total of 97 points. Here is how they achieved that score.

32 points were earned by collecting ordinary items and powerups. This makes up 32.99% of their total score.
27 points were earned as a result of 7 special bonus items being collected. This is 27.84% of their total score.
They were responsible for the destruction of 4 cannons, earning them another 40 points. This equates to 41.24% of their total score.
Unfortunately, not realizing the detriment of inaccuracy, the player threw 1 rocks at... well, everything but... the cannons! This cost them 5 points. It's too bad really, because they could've had a much better score of 102 points. Aim better next time!
Finally, due to their speed in collecting items, they earned an additional 3 points. This is 3.09% of their total score.

7 platforms spawned. 6, or 85.71% of these were consumed by the pit.
16 cannons spawned, and 7 or 43.75% of these broke due to Gods Attention or some other unfortunate and cacophonous calamity. The other 4, or 25.0% were dispatched by a player!
The cannons shot 25 balls at Zarvox. They jumped over 16 or 64.0% of them, while an additional 7 or 28.0% of the balls fired missed completely due to our faulty aiming system. The other 2 or 8.0% were direct hits.

Also, a total of 7 rock throwers spawned, and 1 or 14.29% of these broke because... I think they were just too stupid to get out of the way of the pit. Or maybe, God hated them!
Back to the cannon balls though, some of them did work in the player's favor. In all, 4 cannon balls hit and destroyed rock throwers. This equates to about 57.14% of all throwers spawned.
The throwers shot 31 rocks at Zarvox, hitting with 2 of them which is about 6.45% of the time. The other 29 or 93.55% of the rocks missed them because I think that these damn throwers are blind or something. Like can't you guys aim?
The player grabbed 19, or 61.29% of all the rocks that fell.
They threw 15 rocks. 14 rocks hit cannons, whereas 1 missed. As a result, Zarvox's accuracy was 93.33%!

In the end, it was a cannon that killed Zarvox