These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
This might be over-thinking a children’s game, but it’s interesting: If you play Reading Blaster 9-12 in Mystery Mode, the third clue in level 3 (revealed on parchment in the library) is an obituary for Lydia, the mansion's ghost. It's dated 1847. Her e-mail diary is dated 1995, and we discover in the entries that she is eventually visited by what she believes might be her at age 16. Presuming that Lydia was 16 in 1847, then Lydia would have been 148 in 1995, and 150 two years later. We know she’s been a ghost for about 150 years, because she states it when she gloats (that is, if you lose a game against her). If Lydia died at age 16 (the diary entries tell us that writing came easier to her at that age, and the obituary tells us that she was a novelist), then her ghost would naturally be the age she gives. They make it seem as if it is Lydia, which would obviously make her 148 years old, but she’s also visited by what we might assume is her 16 year old ghost (who has also been in that state for 148 years). When did Lydia really die, did ghost-Lydia kill 1995-Lydia, and is our ghostly guide throughout the game a sinister 16-year-old?
In Mega Math Blaster, the best ending has Blasternaut face off against Gelator on some Western planet. Gelator tries to draw a gun, but, not having one, draws Spot instead, and embarrassingly tosses the droid aside. And so Blasternaut brings out a sand-blower that turns Gelator into a stone statue, which subsequently shatters into pieces! What makes this terrifying is that another ending reveals that Gelator's parents were looking for him.