After completing the game, the player may choose to enter "challenge mode".

Any map can be played and replayed in challenge mode.

In challenge mode, the game records the number of portals used and time taken to complete each map.

The second mode is challenge mode where players will face special situations.

The last ten levels of story mode are not used in challenge mode.

One more difference is that there are bonus levels in challenge mode.

Any level reached by the player in normal challenge mode can be played.

Each map includes a campaign mode and four challenge modes.

Victory in the challenge modes were the game's ultimate accomplishment.

A challenge mode is included to see how fast the player can get to the checkpoints in a limited amount of time.