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Discover the secret EXTRA stage!
Clear the SHAFT stage perfectly!
Eliminate all "LANDOLT RING"s in the ATOMS stage!
Eliminate all "HUE CIRCLE"s in the ATOMS stage!
Clear the SPACE stage perfectly!
Clear the WATER stage perfectly!
Eliminate all "PERISCOPE"s in the WATER stage!
Clear the RIDGE stage perfectly!
Clear the game once!
Clear the SHAFT stage!
Collect a ton of power-ups to become fully powered-up!
Clear the ATOMS stage!
Score 100,000 points!
Clear the SPACE stage!
Clear the WATER stage!
Clear the RIDGE stage!
Complete the game!!
Clear the ATOMS stage perfectly!
Eliminate all "BARRAGER"s in the WATER stage!
Destroy 256 "ASTEROID"s in the RIDGE stage!
Hack away at the SHAFT stage boss, "POLYHEDRON," 256 times!
Defeat the WATER stage boss, "OCTOPUS," with all appendages intact!