Flash DROD: KDDL 3

I like the game play but it is too short.

so many secrets on second level, wonder how many were in the first one
plz ignore the wow V

I actually bothered solving the "three bottles" puzzle in the prologue, and it was easier than I thought it would be.

(Beethro has 3 bottles, one 10-cup sized, another 5-cup sized and the last is 2-cup sized. He wants to drink exactly 4-cup amount of the tea, of which the 10-cup sized bottle is currently full with, uninterruptedly)

(Solution: 1) Fill the 2-cup sized bottle, leaving 8 cups in the 1st bottle and 2 cups in this 3rd bottle.
2) Having measured 2 cups of tea, pour the 2 cups of tea in the 3rd bottle to the 2nd, so the bottles contain 8, 2, and 0 cups of tea
3) Repeat steps 1 and 2, (pour 1 to 3 until full, then pour 3 to 2), and you have 6,4,0. Drink bottle 2.)

Now I really wonder how he could've gotten through all these puzzles so far, as some rooms are really difficulty/tricky.

So... some context here. This is a Flash port of a fairly dated computer game. To reduce the size of the game, they split it up into several parts. (This is part 3, corresponding to floors 9-12.) Each floor is themed, and floor 9 happens to be the "lure roaches into switch door areas" floor. It also explains the unusual difficulty at the start.

Is...the only puzzle we're ever going to get here "Lure roaches into switch door areas so you can trap them, open a wall, then kill them all"? Cause unless way later it changes, that sure seems to be the only damned one I see, and doing essentially the exact same puzzle over and over again in different forms is kinda boring, so even if it DOES change later, why would you make the first, like, 9 rooms the same damn thing?