CheatCodes.com has all the official Papyrus Game Boy cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Tuesday May 21, 2013 for Papyrus are shown below.
Level Boy Girl 1 F+51 KN4K 2 3DTS 1-QB 3 F80W GND9 4 9N87 JV-B 5 WX-0 CR73 6 1-SN RPD9 7 H1WR JNTX 8 C2VX F-T- 9 1-KS 3BWX 10 GTCP DS+Q 11 X9M- TB81 12 8Q63 7R+D 13 8NRR 59GN 14 1KK2 R4PX 15 -07L 9NWN 16 VTGT 92B0 17 ZHNK 5SNC 18 X3FB N0-3
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