[jiji]

This seems to be the gist of it (paragraph breaks are mine):

[0158]As described above, in the present embodiment, when a player cannot find how to solve the "puzzle" which is set in the game, the player is allowed to view, in the scene, moving images for indicating how to solve the puzzle when the player desires to. Therefore, a player that cannot find how to solve the "puzzle" may not become stuck with the game, and reduction, due to the puzzle being unsolved, in motivation for clearing the game may be prevented. Thus, a player unaccustomed to a game or a player that does not have a lot of time for game play is allowed to play and clear the game to the end. Further, how to solve the "puzzle" is indicated as "moving images" by using an actual example in which the puzzle is actually solved, and therefore a player knows, for certain, how to actually move (operate) the player character. Therefore, for example, a player that cannot know, from a hint represented by only character information, how to solve the puzzle may not become stuck with the game, and may be allowed to play the game to the end.

So, low-quality hint movies that play ingame and display solutions, but are ugly enough to encourage the player to figure it out themself in the future.