The riddles requiring jap "signs" make the game unplayable. The guides have answers but not a, literally, drawing of the symbol you have to type in. I only got past the kitchen riddle with the use of google translate ("bear" translation actually fit into the window and allowed me to complete the riddle). Doing the same with other riddles doesnt work (translating in GT and typing it in comes up with a fail; not enough/too many "signs"). Ah well. Gonna look for a save instead.