大蛇丸

大 = 一 + 人 : The big (大), huge (大) robot (mnemonic symbol for 大) is working out in the ashram's bathroom (a4). He's lifting a flute (一) to which Don Quixote (d) and Neanderthal man (人) are clinging.

蛇 = 它 + 虫 : Sherlock Holmes (sh) is investigating the death of a mosquito (虫) in the elevator's kitchen (e2). He took a blood sample from the mosquito and analyzes it with his computer (它). It turns out that the mosquito stung the venomous snake (蛇) which is sleeping across the hall, and the venom killed the mosquito.

丸 = 丶 + 九 : Mnemonic symbol: a bag of painkillers.

Willy Walrus feels like floating on cloud nine after he took too many painkillers. Floating on cloud nine just inside the anthill's kitchen he covers himself with a large petal leaf and just wants to sleep.