Cheats for Irisu Syndrome! (PC)

Instantly Unlock Metsu Mode:
To instantly unlock Metsu Mode without making the 40,000-point milestone, 
go to the title screen and press on your arrow keys Up, Up, Up, Up, Right,
Right, Down. A sound will confirm correct entry: in about 5 seconds, a 
cat will appear at the lower-right corner. Click it to enter Metsu mode.

Note: This is not recommended for new players as it skips a large segment 
of the story.
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