Cavern of the Metal Cap - 8 Red Coins

This mission is unique to the N64.
We jump back into Hazy Maze Cave and go into the undergroud cavern with Dorrie. We steer Dorrie to the set of double doors on the right and go through them. We find another inky pool, like the one we used to get to the Hazy Maze Cave. We land in a stone corridor as Metal Mario. A remix of the Wing Cap music plays. We get a message: "Welcome to the Metal Cap Switch Course! Once you step on the Cap Switch, the green blocks will become solid. When you turn your body into metal with the Metal Cap, you can walk underwater! Try it!"
We can now run through enemies as if we had a Starman. We leave the corridor with the Snifits and enter an area with a fast moving current of water. We cross the bridge and find two Red Coins in an alcove with a 1-up. Because we are metal, we sink to the bottom of the water and are not affected by the current. If we are in the water without the Metal Cap, we will be pushed out of the waterfall by the current, unless we wash up on one of the rocks that serve as platforms. Near the waterfall that is producing the current, in the center of an island, is a large green switch, just like the one we saw in the Wing Cap course. We step on it, as our power is running out, and get a message: "You've just stepped on the Metal Cap Switch! The Metal Cap Switch makes Mario invincible. Now Metal Caps will pop out of all the green blocks you find. Would you like to save? Yes/No"
We got the two Red Coins that were behind the switch and used the Metal Cap, in the block nearby, to get the last four Red Coins that surround the island underwater. The Star appears underwater, so make sure to have the Metal Cap when going for it.
Star Get #42, 44 Coins, 8 Lives