Advanced Mode:
Complete the game one time to unlock the advanced mode, which let you select the level you wish to
play.


Benoit Manderubrot:
Finish the game in normal and adavanced mode (available after beating the
game the first time) by getting at least an A ranking.

Extra Characters:
Complete the game with the rankings A, B and S in order to get Marcury,
Benoit and Neo Tank.