When you even encounter the sand gates with some sand guards, kill the one that have red color on his threads(the one that will send reinforcements if you have alerted the guards of the sand gate)and then take his sword, that sword has the ability to restore the sands on your sand tank without getting sands from other breakable objects around you. This sword will be gone if you thrown it or you have been transform to Dark Prince, but don't worry there are many sand gates that you'll encounter in the game.
Secondary weapon becomes a Chainsaw:
Take out your dagger pause the game and enter Up, Up, Down, Down, Left, Right, Left, Right, Up, Down, Up, Down.
Unlock Baby Toy Hammer:
Complete the game on 'Easy' setting, take out your dagger pause the game and enter Left, Left, Right, Right, Up, Down, Down, Up, Up, Down.
Unlock Telephone of Sorrow:
Complete the game on 'Normal' setting, take out your dagger pause the game and enter Right, Left, Right, Left, Down, Down, Up, Up, Up, Down, Up, Up, Down, Down.
Unlock Swordfish Weapon:
Complete the game on 'Hard' setting, take out your dagger pause the game and enter Up, Down, Up, Down, Left, Right, Left, Right, Up, Down, Up, Down.
Unlockables
Deactivate the indicated number of Sand Gates to get the following:
4th Sand Tank:
Deactivate 1 Sand Gate
100 Sand Credits:
Deactivate 2 Sand Gates
Eye of the Storm Time Power:
Deactivate 3 Sand Gates
5th sand Tank:
Deactivate 4 Sand Gates
150 Sand Credits:
Deactivate 5 Sand Gates
Winds of Sand Attack:
Deactivate 6 Sand Gates
6th Sand Tank:
Deactivate 7 Sand Gates
200 Sand Credits:
Deactivate 8 Sand Gates
Sand Storm Attack:
Deactivate ALL 9 Sand Gates
Complete the Game:
Video Gallery