Ryuu Kyuu/Hidden content

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PC Engine version

Extra 256 points

Hold Ⅱ when powering on the system. When the title screen appears, keep Ⅱ held and press ↑ ↑ ↑ ↑ ↓ ↓ ↓ ↓ ↑ ↓ ← →. A sound will confirm correct entry. From now on, scoring points from matching cards will award an additional 256 points.

Double time for 1P Hard Type B

Hold  SELECT  when powering on the system. When the title screen appears, keep  SELECT  held and press ↑ ↑ ↓ ↓ ← ← → → ↑ ↓ ← →. A sound will confirm correct entry, and the starting time limit for 1P Hard Type B will be doubled to 200 seconds.

Retry stages

Get a Game Over in Try 1 Mode and choose "No" when asked to continue to return to the title screen. Press and hold  RUN , and when the main menu appears keep  RUN  held and press ↑ ↑ ↑ → → → ↓ ↓ ↓ ← ← ←. A sound will confirm correct entry, and an option to retry stages will be added to the BGM select screen displayed when pausing the game in 1P Mode and Try 1 Mode.