Blue's ABC Time Activities

In this game based on the popular kids show, the residents of a house of talking objects, strange-colored canines, and a live-action manchild decide to have fun with words for no explained reason. The game features multiple minigames designed to teach small children basic English. You can also collect words by playing these games, which can be used in the "Word Book" to make your own stories, a la Mad Libs.

Unused Subtitles
Just like with every other Humongous game ever made, this game has complete but inaccessible subtitles. They can be turned on by using ScummVM's UI or by adding the line

TextOn=1 to hegames.ini or scummvm.ini.

Room 3
Using ScummVM's debugger (Ctrl+D) and entering the command room 3 brings up this interface. It's presumably placeholder graphics for the notebook and pawprints, which don't appear in this game.

Free Words!
As the screen implies, words for the Word Book can be unlocked by clicking the sign. This screen can be accessed by warping to room 15 using ScummVM.

Pajama Sam Leftovers
Bizarrely, the load game screen for Pajama Sam can be seen by typing room 17 into ScummVM's debugger. It was very likely just a leftover from the aforementioned game.