Minikit #6: During the column-pushing puzzle just after the third Morgul block, your impulse will be to align the columns with the ledge. Instead, push them to opposite side. Then jump up and jump into the tiny opening in the nearby rock to find a minikit.
Minikit #7: Later in the level you’ll come across this small cave under a series of columns. Use Frodo’s Glowing Phial to access it. Take out the Orc and the destroy the rock to find a minikit.
Minikit #8: During the Orc attack, you’ll come across some Mithril pillars. Destroy them with the Berserker’s bombs to reach the minikit hidden behind them.
Minikit #9: Just past the previous minikit you’ll find a spot to use Sam’s spade. Use it to grow a bouncy plant and bounce up to the minikit on the ledge above.
Minikit #10: Just before the boss room, cut south to find a Mithril-blocked cave. Use the Berserker’s bombs to open the way, and enter the secret area.
Make your way through the linear tower’s climbable walls and hatches until you reach the top…and a very well-hidden minikit!