Laser Maize Solution

Part 1

There are a few variants on how to place the prisms, but only one canonically correct one (that'll extract the right data later) If they're in a non-canonical state, it'll display a message like "the way is still blocked... these lasers look off:"

  • Puzzle 1:
  • Puzzle 2
  • Puzzle 3

Reading the Semaphore letters for each of the three puzzles in rainbow order spells: POPCORNKERNELPANIC

Part 2

Each joke indicates some numbers/letters. Looking at just the indicated numbers/letters on the corn draws a letter. Pressing P lets you confirm the current page's letter.

Corn-y JokeAnswerKey
Why was 6 afraid of 7?7 8 9 (seven ate nine)I
Two atoms are walking when one says i lost an electron. Are you sure? said the other atom.I'm positive (+ numbers)M
2019 and 2020 got into a fight, which year won?20 21 (2020 won)A
What do you call the numbers 3 and 7 on a dateThe odd coupleL
What do you call a number that can't keep still?A roamin' numeral (I V X L C D M)L
What do you call a pet snake that's 3.14 feet long?A pi-thon (pi)E
What are two reasons you shouldn't drink from a toilet?Number 1 and number 2A
There are nine cows in a field, which one is from the middle east?Cow 8 (sounds like Kuwait)R
Why didn't 4 go to the hip and happening party?Because it was 2²S

Confirming each letter adds two words to a final joke to the last screen: "What did the farmer say when he heard about the quickly rising price of government corn subsidies?"

Solution

IMALLEARS