Once unlocked, this mode is accessible from the Time Attack menu:
Unlockable
How to Unlock
Sudden Death mode
Beat the first rank time in both Easy and Hard mode.
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100%
Extra Tile and Cursor Sets
Added on
2008-01-28 at 15:15:12
You need to complete Daily Polarium for at least two "full" months (i.e. your first month would not count unless you start on the first day of any month). You will unlock either a tile or cursor set on the first day of the following month, depends on the month (see below). The last set will be unlocked when you finish a year in Daily Polarium.
Note that you don't need to complete the secondary objectives (e.g. start and end on specific point etc) to unlock these. Once unlocked, these can be chosen in the option menu.
Unlockable
How to Unlock
Cursor Set
On 1st of March, July and November
Tile Set
On 1st of January, May and September
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3 Special Puzzles
Added on
2008-01-28 at 15:14:59
Unlockable
How to Unlock
3 Special Puzzles
Complete 100% all puzzles in Polarium Reference.
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Extra Tile Sets
Added on
2007-01-14 at 17:30:14
These sets can be chosen in teh options menu, once unlocked: