-Just after your first transformation into the Dark Prince, you will reach a hallway with two paths. One is down a trapped corridor, and the other is hidden behind a cloth doorway. Enter the doorway and follow the beams until you reach a fountain. Drink from the fountain and you will appear in a trapped corridor. Make your way past the traps to the light, and you will appear back at the fountain with a health bonus.
-Right after you defeat the Canal Monster, there will be a fountain where you can save. Go back where you will find some pots and jars and smash them. There will be a hole behind them, which you need to roll under, leading you to a bonus health fountain.
-There is a circular water-filled room just after one of your Dark Prince transformations. After solving the puzzle and running up the wall to get to the rods, jump up from rod to rod. Around halfway up the room you will see a hole in the wall poorly concealed behind a blue banner. Jump through this hole to get to a life upgrade fountain. Make it to the end of the corridor and you will appear back at the bottom of the room.
-After the third Boss fight and a Dark Prince transformation, you will be in a big room with an elevator in it. Make your way up the room until you get to a platform with two seductresses on it. Defeat them and climb over the railing, then jump up the dagger holds. At the top one, do a wall jump until you activate the pressure plate. Slow time and make your way through the door on the left before it closes. At the end of this hallway there will be a health bonus fountain.
-After the intermission sequence in which Farah kills a Sand Guard for you, climb the rooftops and kill the Sand Archers in your path. Eventually you will be told that you have lost the rooftops. Make your way down until you are in a room with one of those mechanisms that you stab your dagger into. It will open two doors. Do not go through the closer one to your right. Go through the one behind you down the ramp. Make your way through the corridor until you get to a health bonus fountain.
-Get past the second tower climb, where you raise stone blocks in elevators when you are at the top. Enter to see a corridor with traps and diagonal jumping shutters. Go back outside. Go down to the final platform you were on. You will see that you have the landscape view option available. Use it and go into the doorway you see below. It will lead to the last extra health fountain. Note: The traps in this one are tough. It is frustrating, but you can do it without any slow downs. Do not worry about falling; you will wake up on the floor in front of the fountain and can try again.