The leaderboard didn't seem to want to load for me, but I defeated 11 octopuses:
I saw this entry back near the start of the jam, it's impressive you were able to make something in that really short time frame. At the time there weren't instructions on how to use the dice, so I'm glad to see that's been added to the description.
The best strategy seems to be sticking to the middle of the screen, and not getting lured away by the candies, so that you have time to react to an attack from either direction. All the more so since I don't know what the candies do, they don't appear as a counter on the score screen.