勿
=
丿
+
勹
:
Mnemonic symbol from the shape of the character: bat wings. The 丿 strokes look like the fingers of a single bat wing.
The elephant (勹) wants to eat a banana (丿) in the space station's bathroom (Ø4), but Willy Walrus (w) suddenly flies by (using bat wings (勿)), snatches the banana away and shouts "do not!" (勿)
忘
=
亡
+
心
:
Willy Walrus (w) will never forget (忘) his love who is buried in the anglepod's bathroom (ang4). There is not a single day when Willy forgets (忘) to bring his heart (心) and leave it right next to his love's tombstone (亡).
我
=
戈
+
手
:
I (我) find Willy Walrus (w) lying motionless in the observatory's living room (o3), and there's a dagger-axe (戈) sticking right in his chest. I (我) try to pull it out while wearing a baseball glove (手).