I doubt it, because it affects all sprites rather than Keen.
While using the patch, I discovered that in Level 1, touching the left side of the 3-block pyramid before the first Pat-pat will put Keen right over it.
Edit: What have I done to Keen 1?!
Code: Select all
#AAAAAAAHHH!!!! THE TEXT IS MESSED UP!!!
%patch $9FF9 $08 $00
Seems to have no effect on the game. However, the story "freezes" the game, but when you minimize it and open it back up, you go to a "world map" made of some strange yellow-pole-like tile. CtSpace, Invincibility, the Status screen, and the Esc menu don't pop up when activated (except for the lives on the status screen), although they probably still work. There are blocking tiles, but I haven't seen any levels. (Change 9FF9 to 9FFA to make it red, and 9FFB to only show bitmaps and some sprites.)
Previews does same thing, but seems to fade to the yellow/red pole world instead of fake freezing. Ending sequence (or at least the screen after it) does same thing as Previews, but fades to white instead and plays the Game Over sound.
Edit: There are actually levels, if you look for them.
Hopefully, my last edit: You actually stay in the story screen, so back out and find the New Game option to enter the world map.