Unlimited sand:
If you reach a save point, there might be a vase with an extra sand
slot. Destroy it to get the sand. Save the game, then fall off a
ledge or get killed. Load your saved game and destroy the vase
again. This will give you unlimited sand to work with.
Life Upgrade locations
1 (Past): After fighting the girl in black a second time, pull the
large altar on ground level of the sacrificial chamber to reveal a
secret door. Go through the trapped hallway and get the first Life
Upgrade.
2 (Past): This is done after Slow Time is earned. From the room
where the Prince has an intermission sequence with the maggot man
creature, go into the large courtyard-like room with a timed floor
switch next to some stairs. This switch opens a low gate at the top
of the same set of stairs. Go through that trapped hallway for the
second Life Upgrade. Note: To obtain the second Life Upgrade
without getting the power that slows time, you must find the switch
behind the barrels. Press the switch and wall ride up the wall,
instead of running up the stairs roll. If done correctly, you
should make it a moment before the door closes.
3 (Past): This is done after the Serpent Sword is earned. Rotate
the turnstile switch directly opposite the facing of the metal nub
where the Serpent Sword was used to create platforms to a door at
the bottom of the chasm. Use long wall jumping to slow the Princes
descent down to the level of the door. Past that door is a trapped
hallway that leads to the third Life Upgrade.
4 (Past): When exploring the Garden Tower, look for a room that is
overgrown with vegetation and is directly below a box and folding
bridge puzzle. It is in the same vicinity as the first switch that
turns on the water for the Garden Tower. A break in the fencing
allows the Prince to drop off and use ledges to access a door
underneath the overgrown vegetation room. The fourth Life Upgrade
is past that trapped hallway.
5 (Past): When exploring the Garden Towers second water puzzle,
ledge up after turning on the water (but before exiting the room
with the turn switch) for the fifth Life Upgrade.
6 (Past): When exploring the Clock Tower, look the giant Golem
enemy that throws explosives. One breakable wall is a save point,
but there is a second breakable wall on the other end of the room
leads to the sixth Life Upgrade.
7 (Past): After gaining the Scorpion Sword and a particularly tough
giant Golem encounter, a ladder leads the Prince to a Roman
courtyard room. Two breakable walls are here -- one has a switch,
and the other has the door which requires Slow Time to access. The
seventh Life Upgrade is past that door.
8 (Past): After entering the Library, the Prince will need to pull
out two bookcases to continue his progress. Look for two circular
ledge/beam structures (one of which will have a Ninja) after
dealing with the bookcases. One of the circular ledge/beam
structures leads to a wall with three levels of ledges that may be
climbed/sidled. This is a detour to the eighth Life Upgrade.
9 (Past): There is a location near the beginning where you chased
Shadee (girl in black) and a door shut behind her. You then have to
go up a set of platforms to finally reach the switch atop the room,
just before sacrificial pit. Go back there when you get a sword
that can break walls. Make your way back up this room. Look
carefully when on the top platforms. There should be a set of metal
bars in one of the wall that seem damaged. There is a crate behind
those bars. Break the metal bars with your sword. Bring the crate
onto the platform and look up. You can use the crate to