1-Player Game Codes

AAUEUSSO Speed doesn't increase
VNUEUSSO Speed increases much faster
TEXAKYPA Start and stay at speed of 25
ZEKESSPP + PESAOSAP Max speed is 2
ZEKESSPO + PESAOSAO Max speed is 10
YEKESSPO + TESAOSAO Max speed is 15
GOKESSPP + LOSAOSAP Max speed is 20

1-Player vs 2-Player or 1-Player vs Computer Game Codes

OZNETPOU + PANEYPAA Every round starts with 4 fixed blocks
OZNETPOU + YANEYPAA Every round starts with 10 fixed blocks
OZNETPOU + GANEYPAE Every round starts with 15 fixed blocks
OZNETPOU + PPNEYPAA Every round starts with 20 fixed blocks

All Games Codes

AAVZVYEA Cannot pause game with START button
AVEXOYXZ Don't hide remaining pieces during pause